diff --git a/lib/syslib/pci_init1.c b/lib/syslib/pci_init1.c
index 89d241acd..11b2fb913 100644
--- a/lib/syslib/pci_init1.c
+++ b/lib/syslib/pci_init1.c
@@ -6,6 +6,7 @@ pci_init1.c
 #include "syslib.h"
 #include <string.h>
 #include <unistd.h>
+#include <minix/ds.h>
 #include <minix/sysutil.h>
 
 int pci_procnr= ANY;
diff --git a/lib/syslib/vm_map_phys.c b/lib/syslib/vm_map_phys.c
index e539fa59c..5bd19d149 100644
--- a/lib/syslib/vm_map_phys.c
+++ b/lib/syslib/vm_map_phys.c
@@ -1,6 +1,7 @@
 #define _SYSTEM 1
 #include <lib.h>
 #include <sys/mman.h>
+#include <minix/syslib.h>
 #include <minix/vm.h>
 #include <stdarg.h>
 #include <string.h>