diff --git a/ext/standard/dl.h b/ext/standard/dl.h
index ea472eb2365..467f618c40c 100644
--- a/ext/standard/dl.h
+++ b/ext/standard/dl.h
@@ -27,7 +27,7 @@ PHPAPI int php_load_extension(char *filename, int type, int start_now TSRMLS_DC)
 PHPAPI void php_dl(char *file, int type, zval *return_value, int start_now TSRMLS_DC);
 
 /* dynamic loading functions */
-PHP_FUNCTION(dl);
+PHPAPI PHP_FUNCTION(dl);
 
 PHP_MINFO_FUNCTION(dl);