diff --git a/include/minix/vfsif.h b/include/minix/vfsif.h
index 2044b55ff..9ced295a2 100644
--- a/include/minix/vfsif.h
+++ b/include/minix/vfsif.h
@@ -31,10 +31,8 @@
 #define REQ_REN_OLD_DIR		m9_l3
 #define REQ_ROOT_INO		m9_l4
 #define REQ_SEEK_POS		m9_ull2
-#define REQ_TRC_END_HI		m9_l4
-#define REQ_TRC_END_LO		m9_l5
-#define REQ_TRC_START_HI	m9_l2
-#define REQ_TRC_START_LO	m9_l3
+#define REQ_TRC_START		m9_ull1
+#define REQ_TRC_END		m9_ull2
 #define REQ_UCRED_SIZE		m9_s4 
 #define REQ_UID			m9_s4
 
diff --git a/lib/libpuffs/link.c b/lib/libpuffs/link.c
index 931f78c26..f934d0777 100644
--- a/lib/libpuffs/link.c
+++ b/lib/libpuffs/link.c
@@ -22,8 +22,8 @@ int fs_ftrunc(void)
   if ((pn = puffs_pn_nodewalk(global_pu, 0, &fs_m_in.REQ_INODE_NR)) == NULL)
           return(EINVAL);
 
-  start = fs_m_in.REQ_TRC_START_LO;
-  end = fs_m_in.REQ_TRC_END_LO;
+  start = fs_m_in.REQ_TRC_START;
+  end = fs_m_in.REQ_TRC_END;
 
   if (end == 0) {
 	struct vattr va;
diff --git a/lib/libsffs/write.c b/lib/libsffs/write.c
index 68fe2402c..4d852ea99 100644
--- a/lib/libsffs/write.c
+++ b/lib/libsffs/write.c
@@ -131,8 +131,8 @@ int do_ftrunc(void)
 
   if (IS_DIR(ino)) return EISDIR;
 
-  start = make64(m_in.REQ_TRC_START_LO, m_in.REQ_TRC_START_HI);
-  end = make64(m_in.REQ_TRC_END_LO, m_in.REQ_TRC_END_HI);
+  start = m_in.REQ_TRC_START;
+  end = m_in.REQ_TRC_END;
 
   if (end == 0) {
 	/* Truncate or expand the file. */
diff --git a/servers/ext2/link.c b/servers/ext2/link.c
index 514714132..d4144acab 100644
--- a/servers/ext2/link.c
+++ b/servers/ext2/link.c
@@ -523,8 +523,8 @@ int fs_ftrunc(void)
   if( (rip = find_inode(fs_dev, (pino_t) fs_m_in.REQ_INODE_NR)) == NULL)
 	  return(EINVAL);
 
-  start = fs_m_in.REQ_TRC_START_LO;
-  end = fs_m_in.REQ_TRC_END_LO;
+  start = fs_m_in.REQ_TRC_START;
+  end = fs_m_in.REQ_TRC_END;
 
   if (end == 0)
 	  r = truncate_inode(rip, start);
diff --git a/servers/mfs/link.c b/servers/mfs/link.c
index a0bb32a1c..d6d482ca2 100644
--- a/servers/mfs/link.c
+++ b/servers/mfs/link.c
@@ -498,8 +498,8 @@ int fs_ftrunc(void)
   if(rip->i_sp->s_rd_only) {
   	r = EROFS;
   } else {
-    start = fs_m_in.REQ_TRC_START_LO;
-    end = fs_m_in.REQ_TRC_END_LO;
+    start = fs_m_in.REQ_TRC_START;
+    end = fs_m_in.REQ_TRC_END;
 
     if (end == 0)
 	  r = truncate_inode(rip, start);
diff --git a/servers/pfs/link.c b/servers/pfs/link.c
index fe3938221..3648c4e04 100644
--- a/servers/pfs/link.c
+++ b/servers/pfs/link.c
@@ -16,7 +16,7 @@ int fs_ftrunc(message *fs_m_in, message *fs_m_out)
 
   if( (rip = find_inode(inumb)) == NULL) return(EINVAL);
 
-  start = fs_m_in->REQ_TRC_START_LO;
+  start = fs_m_in->REQ_TRC_START;
 
   return truncate_inode(rip, start);
 }
diff --git a/servers/vfs/request.c b/servers/vfs/request.c
index 58a64061d..09389dc1a 100644
--- a/servers/vfs/request.c
+++ b/servers/vfs/request.c
@@ -252,25 +252,13 @@ int req_ftrunc(endpoint_t fs_e, ino_t inode_nr, off_t start, off_t end)
   /* Fill in request message */
   m.m_type = REQ_FTRUNC;
   m.REQ_INODE_NR = (pino_t) inode_nr;
+  m.REQ_TRC_START = start;
+  m.REQ_TRC_END = end;
 
-  m.REQ_TRC_START_LO = ex64lo(start);
-  if (vmp->m_fs_flags & RES_64BIT) {
-	m.REQ_TRC_START_HI = ex64hi(start);
-  } else if (start > INT_MAX) {
+  if (!(vmp->m_fs_flags & RES_64BIT) &&
+	((start > INT_MAX) || (end > INT_MAX))) {
 	/* FS does not support 64-bit off_t and 32 bits is not enough */
 	return EINVAL;
-  } else {
-	m.REQ_TRC_START_HI = 0;
-  }
-
-  m.REQ_TRC_END_LO = ex64lo(end);
-  if (vmp->m_fs_flags & RES_64BIT) {
-	m.REQ_TRC_END_HI = ex64hi(end);
-  } else if (end > INT_MAX) {
-	/* FS does not support 64-bit off_t and 32 bits is not enough */
-	return EINVAL;
-  } else {
-	m.REQ_TRC_END_HI = 0;
   }
 
   /* Send/rec request */