diff --git a/src/if_lua.c b/src/if_lua.c
index 6559550..0af041a 100644
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -2736,7 +2736,7 @@
 }
 
     void
-update_package_paths_in_lua()
+update_package_paths_in_lua(void)
 {
     if (!lua_isopen())
 	return;