diff --git a/include/minix/callnr.h b/include/minix/callnr.h
index d6910d954..9d4f98006 100644
--- a/include/minix/callnr.h
+++ b/include/minix/callnr.h
@@ -288,16 +288,6 @@
 #define VFS_MAPDRIVER_LABELLEN	m1_i2	/* size_t */
 #define VFS_MAPDRIVER_LABEL	m1_p1	/* char * */
 
-/* Field names for the utimens(2) call. */
-#define VFS_UTIMENS_FD		m2_i1	/* int */
-#define VFS_UTIMENS_NAME	m2_p1	/* const char * */
-#define VFS_UTIMENS_LEN		m2_i1	/* size_t */
-#define VFS_UTIMENS_ATIME	m2_l1	/* time_t */
-#define VFS_UTIMENS_ANSEC	m2_i2	/* long */
-#define VFS_UTIMENS_MTIME	m2_l2	/* time_t */
-#define VFS_UTIMENS_MNSEC	m2_i3	/* long */
-#define VFS_UTIMENS_FLAGS	m2_s1	/* int */
-
 /* Field names for the fsync(2) call. */
 #define VFS_FSYNC_FD		m1_i1	/* int */
 
diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index 6eae8bfa4..2eaaed8b2 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -134,6 +134,19 @@ typedef struct {
 } mess_sigcalls;
 _ASSERT_MSG_SIZE(mess_sigcalls);
 
+typedef struct {
+	time_t atime;
+	time_t mtime;
+	long ansec;
+	long mnsec;
+	size_t len;
+	char *name;
+	int fd;
+	int flags;
+	uint8_t padding[16];
+} mess_vfs_utimens;
+_ASSERT_MSG_SIZE(mess_vfs_utimens);
+
 typedef struct {
 	off_t offset;
 	dev_t dev;
@@ -186,6 +199,7 @@ typedef struct {
 	mess_mmap m_mmap;
 	mess_notify m_notify;
 	mess_sigcalls m_sigcalls;
+	mess_vfs_utimens m_vfs_utimens;
 	mess_vm_vfs_mmap m_vm_vfs_mmap;
 	mess_vmmcp m_vmmcp;
 	mess_vmmcp_reply m_vmmcp_reply;
diff --git a/lib/libc/sys-minix/futimens.c b/lib/libc/sys-minix/futimens.c
index 7621e0bd8..73b3315a9 100644
--- a/lib/libc/sys-minix/futimens.c
+++ b/lib/libc/sys-minix/futimens.c
@@ -13,14 +13,13 @@ int futimens(int fd, const struct timespec tv[2])
   if (tv == NULL) tv = now;
 
   memset(&m, 0, sizeof(m));
-  m.VFS_UTIMENS_FD = fd;
-  /* For now just truncate to 32bit time_t values. */
-  m.VFS_UTIMENS_ATIME = (int32_t)tv[0].tv_sec;
-  m.VFS_UTIMENS_MTIME = (int32_t)tv[1].tv_sec;
-  m.VFS_UTIMENS_ANSEC = (int32_t)tv[0].tv_nsec;
-  m.VFS_UTIMENS_MNSEC = (int32_t)tv[1].tv_nsec;
-  m.VFS_UTIMENS_NAME = NULL;
-  m.VFS_UTIMENS_FLAGS = 0;
+  m.m_vfs_utimens.fd = fd;
+  m.m_vfs_utimens.atime = tv[0].tv_sec;
+  m.m_vfs_utimens.mtime = tv[1].tv_sec;
+  m.m_vfs_utimens.ansec = tv[0].tv_nsec;
+  m.m_vfs_utimens.mnsec = tv[1].tv_nsec;
+  m.m_vfs_utimens.name = NULL;
+  m.m_vfs_utimens.flags = 0;
 
   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
 }
diff --git a/lib/libc/sys-minix/futimes.c b/lib/libc/sys-minix/futimes.c
index 1b4dce6a2..df8774ac3 100644
--- a/lib/libc/sys-minix/futimes.c
+++ b/lib/libc/sys-minix/futimes.c
@@ -15,19 +15,19 @@ int futimes(int fd, const struct timeval tv[2])
   message m;
 
   memset(&m, 0, sizeof(m));
-  m.VFS_UTIMENS_FD = fd;
+  m.m_vfs_utimens.fd = fd;
   if (tv == NULL) {
-	m.VFS_UTIMENS_ATIME = m.VFS_UTIMENS_MTIME = 0;
-	m.VFS_UTIMENS_ANSEC = m.VFS_UTIMENS_MNSEC = UTIME_NOW;
+	m.m_vfs_utimens.atime = m.m_vfs_utimens.mtime = 0;
+	m.m_vfs_utimens.ansec = m.m_vfs_utimens.mnsec = UTIME_NOW;
   }
   else {
-	m.VFS_UTIMENS_ATIME = (int32_t)tv[0].tv_sec;
-	m.VFS_UTIMENS_MTIME = (int32_t)tv[1].tv_sec;
-	m.VFS_UTIMENS_ANSEC = (int32_t)tv[0].tv_usec * 1000;
-	m.VFS_UTIMENS_MNSEC = (int32_t)tv[1].tv_usec * 1000;
+	m.m_vfs_utimens.atime = tv[0].tv_sec;
+	m.m_vfs_utimens.mtime = tv[1].tv_sec;
+	m.m_vfs_utimens.ansec = tv[0].tv_usec * 1000;
+	m.m_vfs_utimens.mnsec = tv[1].tv_usec * 1000;
   }
-  m.VFS_UTIMENS_NAME = NULL;
-  m.VFS_UTIMENS_FLAGS = 0;
+  m.m_vfs_utimens.name = NULL;
+  m.m_vfs_utimens.flags = 0;
 
   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
 }
diff --git a/lib/libc/sys-minix/lutimes.c b/lib/libc/sys-minix/lutimes.c
index 7fed0ee7c..9fcf0857d 100644
--- a/lib/libc/sys-minix/lutimes.c
+++ b/lib/libc/sys-minix/lutimes.c
@@ -25,20 +25,19 @@ int lutimes(const char *name, const struct timeval tv[2])
 	return -1;
   }
   memset(&m, 0, sizeof(m));
-  m.VFS_UTIMENS_FD = strlen(name) + 1;
-  m.VFS_UTIMENS_NAME = (char *) __UNCONST(name);
+  m.m_vfs_utimens.len = strlen(name) + 1;
+  m.m_vfs_utimens.name = (char *) __UNCONST(name);
   if (tv == NULL) {
-	m.VFS_UTIMENS_ATIME = m.VFS_UTIMENS_MTIME = 0;
-	m.VFS_UTIMENS_ANSEC = m.VFS_UTIMENS_MNSEC = UTIME_NOW;
+	m.m_vfs_utimens.atime = m.m_vfs_utimens.mtime = 0;
+	m.m_vfs_utimens.ansec = m.m_vfs_utimens.mnsec = UTIME_NOW;
   }
   else {
-	/* For now just truncate time_t values to 32bits. */
-	m.VFS_UTIMENS_ATIME = (int32_t)tv[0].tv_sec;
-	m.VFS_UTIMENS_MTIME = (int32_t)tv[1].tv_sec;
-	m.VFS_UTIMENS_ANSEC = (int32_t)tv[0].tv_usec * 1000;
-	m.VFS_UTIMENS_MNSEC = (int32_t)tv[1].tv_usec * 1000;
+	m.m_vfs_utimens.atime = tv[0].tv_sec;
+	m.m_vfs_utimens.mtime = tv[1].tv_sec;
+	m.m_vfs_utimens.ansec = tv[0].tv_usec * 1000;
+	m.m_vfs_utimens.mnsec = tv[1].tv_usec * 1000;
   }
-  m.VFS_UTIMENS_FLAGS = AT_SYMLINK_NOFOLLOW;
+  m.m_vfs_utimens.flags = AT_SYMLINK_NOFOLLOW;
 
   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
 }
diff --git a/lib/libc/sys-minix/utimensat.c b/lib/libc/sys-minix/utimensat.c
index c6409b424..c298ec60c 100644
--- a/lib/libc/sys-minix/utimensat.c
+++ b/lib/libc/sys-minix/utimensat.c
@@ -44,14 +44,13 @@ int utimensat(int fd, const char *name, const struct timespec tv[2],
   }
 
   memset(&m, 0, sizeof(m));
-  m.VFS_UTIMENS_LEN = strlen(name) + 1;
-  m.VFS_UTIMENS_NAME = (char *) __UNCONST(name);
-  /* For now just truncate time_t values to 32bits. */
-  m.VFS_UTIMENS_ATIME = (int32_t)tv[0].tv_sec;
-  m.VFS_UTIMENS_MTIME = (int32_t)tv[1].tv_sec;
-  m.VFS_UTIMENS_ANSEC = (int32_t)tv[0].tv_nsec;
-  m.VFS_UTIMENS_MNSEC = (int32_t)tv[1].tv_nsec;
-  m.VFS_UTIMENS_FLAGS = flags;
+  m.m_vfs_utimens.len = strlen(name) + 1;
+  m.m_vfs_utimens.name = __UNCONST(name);
+  m.m_vfs_utimens.atime = tv[0].tv_sec;
+  m.m_vfs_utimens.mtime = tv[1].tv_sec;
+  m.m_vfs_utimens.ansec = tv[0].tv_nsec;
+  m.m_vfs_utimens.mnsec = tv[1].tv_nsec;
+  m.m_vfs_utimens.flags = flags;
 
   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
 }
diff --git a/lib/libc/sys-minix/utimes.c b/lib/libc/sys-minix/utimes.c
index 6da24aec0..d3251178f 100644
--- a/lib/libc/sys-minix/utimes.c
+++ b/lib/libc/sys-minix/utimes.c
@@ -24,20 +24,19 @@ int utimes(const char *name, const struct timeval tv[2])
 	return -1;
   }
   memset(&m, 0, sizeof(m));
-  m.VFS_UTIMENS_LEN = strlen(name) + 1;
-  m.VFS_UTIMENS_NAME = (char *) __UNCONST(name);
+  m.m_vfs_utimens.len = strlen(name) + 1;
+  m.m_vfs_utimens.name = __UNCONST(name);
   if (tv == NULL) {
-	m.VFS_UTIMENS_ATIME = m.VFS_UTIMENS_MTIME = 0;
-	m.VFS_UTIMENS_ANSEC = m.VFS_UTIMENS_MNSEC = UTIME_NOW;
+	m.m_vfs_utimens.atime = m.m_vfs_utimens.mtime = 0;
+	m.m_vfs_utimens.ansec = m.m_vfs_utimens.mnsec = UTIME_NOW;
   }
   else {
-	/* For now just truncate time_t values to 32bits. */
-	m.VFS_UTIMENS_ATIME = (int32_t)tv[0].tv_sec;
-	m.VFS_UTIMENS_MTIME = (int32_t)tv[1].tv_sec;
-	m.VFS_UTIMENS_ANSEC = (int32_t)tv[0].tv_usec * 1000;
-	m.VFS_UTIMENS_MNSEC = (int32_t)tv[1].tv_usec * 1000;
+	m.m_vfs_utimens.atime = tv[0].tv_sec;
+	m.m_vfs_utimens.mtime = tv[1].tv_sec;
+	m.m_vfs_utimens.ansec = tv[0].tv_usec * 1000;
+	m.m_vfs_utimens.mnsec = tv[1].tv_usec * 1000;
   }
-  m.VFS_UTIMENS_FLAGS = 0;
+  m.m_vfs_utimens.flags = 0;
 
   return(_syscall(VFS_PROC_NR, VFS_UTIMENS, &m));
 }
diff --git a/servers/vfs/time.c b/servers/vfs/time.c
index 01952760b..1f890d213 100644
--- a/servers/vfs/time.c
+++ b/servers/vfs/time.c
@@ -51,19 +51,19 @@ int do_utimens(void)
   memset(&now, 0, sizeof(now));
 
   /* The case times==NULL is handled by the caller, replaced with UTIME_NOW */
-  actim.tv_sec = job_m_in.VFS_UTIMENS_ATIME;
-  actim.tv_nsec = job_m_in.VFS_UTIMENS_ANSEC;
-  modtim.tv_sec = job_m_in.VFS_UTIMENS_MTIME;
-  modtim.tv_nsec = job_m_in.VFS_UTIMENS_MNSEC;
+  actim.tv_sec = job_m_in.m_vfs_utimens.atime;
+  actim.tv_nsec = job_m_in.m_vfs_utimens.ansec;
+  modtim.tv_sec = job_m_in.m_vfs_utimens.mtime;
+  modtim.tv_nsec = job_m_in.m_vfs_utimens.mnsec;
 
-  if (job_m_in.VFS_UTIMENS_NAME != NULL) {
+  if (job_m_in.m_vfs_utimens.name != NULL) {
 	kind = UTIMENS_STYLE;
-	if (job_m_in.VFS_UTIMENS_FLAGS & ~AT_SYMLINK_NOFOLLOW)
+	if (job_m_in.m_vfs_utimens.flags & ~AT_SYMLINK_NOFOLLOW)
 		return EINVAL; /* unknown flag */
 	/* Temporarily open the file */
-	vname = (vir_bytes) job_m_in.VFS_UTIMENS_NAME;
-	vname_length = (size_t) job_m_in.VFS_UTIMENS_LEN;
-	if (job_m_in.VFS_UTIMENS_FLAGS & AT_SYMLINK_NOFOLLOW)
+	vname = (vir_bytes) job_m_in.m_vfs_utimens.name;
+	vname_length = (size_t) job_m_in.m_vfs_utimens.len;
+	if (job_m_in.m_vfs_utimens.flags & AT_SYMLINK_NOFOLLOW)
 		lookup_flags = PATH_RET_SYMLINK;
 	else
 		lookup_flags = PATH_NOFLAGS;
@@ -77,9 +77,9 @@ int do_utimens(void)
   else {
 	kind = FUTIMENS_STYLE;
 	/* Change timestamps on already-opened fd. Is it valid? */
-	if (job_m_in.VFS_UTIMENS_FLAGS != 0)
+	if (job_m_in.m_vfs_utimens.flags != 0)
 		return EINVAL; /* unknown flag */
-	if ((filp = get_filp(job_m_in.VFS_UTIMENS_FD, VNODE_READ)) == NULL)
+	if ((filp = get_filp(job_m_in.m_vfs_utimens.fd, VNODE_READ)) == NULL)
 		return err_code;
 	vp = filp->filp_vno;
   }