diff --git a/configure.ac b/configure.ac
index 4493b94ac8..732f4fe725 100644
--- a/configure.ac
+++ b/configure.ac
@@ -211,11 +211,11 @@ AC_PATH_PROG([UDEVADM], [udevadm], [],
 	[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
 AC_PATH_PROG([UDEVSETTLE], [udevsettle], [],
 	[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
-AC_PATH_PROG([MODPROBE], [modprobe], [],
+AC_PATH_PROG([MODPROBE], [modprobe], [modprobe],
 	[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
 AC_PATH_PROG([OVSVSCTL], [ovs-vsctl], [ovs-vsctl],
 	[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
-AC_PATH_PROG([SCRUB], [scrub], [],
+AC_PATH_PROG([SCRUB], [scrub], [scrub],
 	[/sbin:/usr/sbin:/usr/local/sbin:$PATH])
 
 AC_DEFINE_UNQUOTED([DNSMASQ],["$DNSMASQ"],
diff --git a/src/util/pci.c b/src/util/pci.c
index 633dcd89ed..c660e8d9b3 100644
--- a/src/util/pci.c
+++ b/src/util/pci.c
@@ -40,11 +40,6 @@
 #include "virterror_internal.h"
 #include "virfile.h"
 
-/* avoid compilation breakage on some systems */
-#ifndef MODPROBE
-# define MODPROBE "modprobe"
-#endif
-
 #define PCI_SYSFS "/sys/bus/pci/"
 #define PCI_ID_LEN 10   /* "XXXX XXXX" */
 #define PCI_ADDR_LEN 13 /* "XXXX:XX:XX.X" */