diff --git a/main/strlcat.c b/main/strlcat.c
index 9fde37b933a..a8be3b437e2 100644
--- a/main/strlcat.c
+++ b/main/strlcat.c
@@ -1,3 +1,5 @@
+#include "php_config.h"
+
 #ifndef HAVE_STRLCAT
 
 /*	$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $	*/
diff --git a/main/strlcpy.c b/main/strlcpy.c
index 0d7d964e70f..fe6760ca764 100644
--- a/main/strlcpy.c
+++ b/main/strlcpy.c
@@ -1,3 +1,5 @@
+#include "php_config.h"
+
 #ifndef HAVE_STRLCPY
 
 /*	$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $	*/