diff --git a/tests/quickjs/premake5.lua b/tests/quickjs/premake5.lua
index c551eec9..cde6ac87 100644
--- a/tests/quickjs/premake5.lua
+++ b/tests/quickjs/premake5.lua
@@ -30,4 +30,4 @@ workspace "qjs"
             defines { "JS_SHARED_LIBRARY" }
         filter { "kind:SharedLib", "system:macosx" }
             linkoptions { "-undefined dynamic_lookup" }
-            targetextension ("so")
+            targetextension (".so")