diff --git a/configure.ac b/configure.ac
index 6232cf846..9af56ab1f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -67,16 +67,16 @@ AC_PROG_GCC_TRADITIONAL
 AC_PATH_PROG([M4], [m4])
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 
-AC_PATH_PROG([QUOTAON], [quotaon], [/usr/sbin/quotaon])
-AC_PATH_PROG([QUOTACHECK], [quotacheck], [/usr/sbin/quotacheck])
+AC_PATH_PROG([QUOTAON], [quotaon], [/usr/sbin/quotaon], [$PATH:/usr/sbin:/sbin])
+AC_PATH_PROG([QUOTACHECK], [quotacheck], [/usr/sbin/quotacheck], [$PATH:/usr/sbin:/sbin])
 
-AC_PATH_PROG([SETCAP], [setcap], [/usr/sbin/setcap])
+AC_PATH_PROG([SETCAP], [setcap], [/usr/sbin/setcap], [$PATH:/usr/sbin:/sbin])
 
-AC_PATH_PROG([KILL], [kill], [/usr/bin/kill])
+AC_PATH_PROG([KILL], [kill], [/usr/bin/kill], [$PATH:/usr/sbin:/sbin])
 
-AC_PATH_PROG([KMOD], [kmod], [/usr/bin/kmod])
+AC_PATH_PROG([KMOD], [kmod], [/usr/bin/kmod], [$PATH:/usr/sbin:/sbin])
 
-AC_PATH_PROG([KEXEC], [kexec], [/usr/sbin/kexec])
+AC_PATH_PROG([KEXEC], [kexec], [/usr/sbin/kexec], [$PATH:/usr/sbin:/sbin])
 
 # gtkdocize greps for '^GTK_DOC_CHECK', so it needs to be on its own line
 m4_ifdef([GTK_DOC_CHECK], [