diff --git a/source/lib/replace/config.m4 b/source/lib/replace/config.m4
index 33dc33a50be..a912675d0f9 100644
--- a/source/lib/replace/config.m4
+++ b/source/lib/replace/config.m4
@@ -15,4 +15,4 @@ if test x"$samba_cv_REPLACE_INET_NTOA" = x"yes"; then
     AC_DEFINE(REPLACE_INET_NTOA,1,[Whether inet_ntoa should be replaced])
 fi
 
-AC_CHECK_FUNCS(strtoull __strtoull strtouq strtoll __strtoll strtoq seteuid)
+AC_CHECK_FUNCS(strtoull __strtoull strtouq strtoll __strtoll strtoq seteuid setresuid)