diff --git a/src/misc/utils.ts b/src/misc/utils.ts
index d07c6f6af4..2c60a1a7a3 100644
--- a/src/misc/utils.ts
+++ b/src/misc/utils.ts
@@ -177,7 +177,7 @@ export class Utils {
         }
 
         let httpUrl = uriString.startsWith('http://') || uriString.startsWith('https://');
-        if (!httpUrl && Utils.tldEndingRegex.test(uriString)) {
+        if (!httpUrl && uriString.indexOf('://') < 0 && Utils.tldEndingRegex.test(uriString)) {
             uriString = 'http://' + uriString;
             httpUrl = true;
         }