diff --git a/extension/data/tbcore.js b/extension/data/tbcore.js
index 7feeda68..dd9ce936 100644
--- a/extension/data/tbcore.js
+++ b/extension/data/tbcore.js
@@ -379,7 +379,7 @@ export function debugInformation () {
             break;
         }
         case OPERA: {
-            browserMatchedInfo = browserUserAgent.match(/\((.*?)\).*OPR\/([0-9.]*?)$/);
+            browserMatchedInfo = browserUserAgent.match(/\((.*?)\).*OPR\/([0-9.]*).*$/);
             debugObject.browser = 'Opera';
             debugObject.browserVersion = browserMatchedInfo[2];
             debugObject.platformInformation = browserMatchedInfo[1];