diff --git a/lib/syslib/Makefile.in b/lib/syslib/Makefile.in
index bcefd8804..ad051f1a8 100644
--- a/lib/syslib/Makefile.in
+++ b/lib/syslib/Makefile.in
@@ -13,6 +13,7 @@ libsys_FILES=" \
 	pci_attr_w16.c \
 	pci_attr_w32.c \
 	pci_attr_w8.c \
+	pci_del_acl.c \
 	pci_dev_name.c \
 	pci_find_dev.c \
 	pci_first_dev.c \
diff --git a/lib/syslib/pci_del_acl.c b/lib/syslib/pci_del_acl.c
new file mode 100644
index 000000000..6a09cc30f
--- /dev/null
+++ b/lib/syslib/pci_del_acl.c
@@ -0,0 +1,41 @@
+/*
+pci_del_acl.c
+*/
+
+#include "pci.h"
+#include "syslib.h"
+#include <unistd.h>
+#include <minix/rs.h>
+#include <minix/sysutil.h>
+
+/*===========================================================================*
+ *				pci_del_acl				     *
+ *===========================================================================*/
+PUBLIC int pci_del_acl(proc_nr)
+endpoint_t proc_nr;
+{
+	int r;
+	message m;
+
+	if (pci_procnr == ANY)
+	{
+		r= _pm_findproc("pci", &pci_procnr);
+		if (r != 0)
+		{
+			panic("pci",
+				"pci_del_acl: _pm_findproc failed for 'pci'",
+				r);
+		}
+	}
+
+
+	m.m_type= BUSC_PCI_DEL_ACL;
+	m.m1_i1= proc_nr;
+
+	r= sendrec(pci_procnr, &m);
+	if (r != 0)
+		panic("pci", "pci_del_acl: can't talk to PCI", r);
+
+	return m.m_type;
+}
+
diff --git a/lib/syslib/pci_set_acl.c b/lib/syslib/pci_set_acl.c
index 164a17791..d5ee446a5 100644
--- a/lib/syslib/pci_set_acl.c
+++ b/lib/syslib/pci_set_acl.c
@@ -39,7 +39,7 @@ struct rs_pci *rs_pci;
 		return EINVAL;
 	}
 
-	m.m_type= BUSC_PCI_ACL;
+	m.m_type= BUSC_PCI_SET_ACL;
 	m.m1_i1= gid;
 
 	r= sendrec(pci_procnr, &m);
@@ -47,6 +47,6 @@ struct rs_pci *rs_pci;
 	if (r != 0)
 		panic("pci", "pci_set_acl: can't talk to PCI", r);
 
-	return r;
+	return m.m_type;
 }