diff --git a/ext/standard/image.c b/ext/standard/image.c
index eb9367766c0..b8da93262ef 100644
--- a/ext/standard/image.c
+++ b/ext/standard/image.c
@@ -97,6 +97,7 @@ PHP_MINIT_FUNCTION(imagetypes)
 	REGISTER_LONG_CONSTANT("IMAGETYPE_JB2",     IMAGE_FILETYPE_JB2,     CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_SWC",     IMAGE_FILETYPE_SWC,     CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("IMAGETYPE_IFF",     IMAGE_FILETYPE_IFF,     CONST_CS | CONST_PERSISTENT);
+	return SUCCESS;
 }
 /* }}} */