diff --git a/packages/server/lib/browsers/electron.js b/packages/server/lib/browsers/electron.js
index 6e83d42cef..7197873ee1 100644
--- a/packages/server/lib/browsers/electron.js
+++ b/packages/server/lib/browsers/electron.js
@@ -231,12 +231,14 @@ module.exports = {
 
       return originalSendCommand.call(webContents.debugger, message, data)
       .then((res) => {
-        if (debug.enabled && (_.get(res, 'data.length') > 100)) {
-          res = _.clone(res)
-          res.data = `${res.data.slice(0, 100)} [truncated]`
+        let debugRes = res
+
+        if (debug.enabled && (_.get(debugRes, 'data.length') > 100)) {
+          debugRes = _.clone(debugRes)
+          debugRes.data = `${debugRes.data.slice(0, 100)} [truncated]`
         }
 
-        debug('debugger: received response to %s: %o', message, res)
+        debug('debugger: received response to %s: %o', message, debugRes)
 
         return res
       }).catch((err) => {