diff --git a/main/fopen_wrappers.h b/main/fopen_wrappers.h
index 96be4090193..e3690751683 100644
--- a/main/fopen_wrappers.h
+++ b/main/fopen_wrappers.h
@@ -35,7 +35,6 @@ PHPAPI int php_check_safe_mode_include_dir(const char *path TSRMLS_DC);
 
 PHPAPI FILE *php_fopen_with_path(const char *filename, const char *mode, const char *path, char **opened_path TSRMLS_DC);
 
-PHPAPI int php_is_url(char *path);
 PHPAPI char *php_strip_url_passwd(char *path);
 END_EXTERN_C()