diff --git a/src/node/hooks/express/tests.js b/src/node/hooks/express/tests.js
index 870c44cbc..5f40a67f0 100644
--- a/src/node/hooks/express/tests.js
+++ b/src/node/hooks/express/tests.js
@@ -66,9 +66,9 @@ const getPluginTests = async (callback) => {
       .filter(([plugin, specDir]) => fs.existsSync(specDir)) // check plugin exists
       .map(async ([plugin, specDir]) => {
         const specFiles = await fsp.readdir(specDir);
-        return specFiles.map((spec) => {
+        for (const spec of specFiles) {
           pluginSpecs.push(staticDir + plugin + specPath + spec);
-        });
+        }
       }));
   return pluginSpecs;
 };