diff --git a/F-Droid/src/org/fdroid/fdroid/Utils.java b/F-Droid/src/org/fdroid/fdroid/Utils.java
index 344279196..f5ef0c357 100644
--- a/F-Droid/src/org/fdroid/fdroid/Utils.java
+++ b/F-Droid/src/org/fdroid/fdroid/Utils.java
@@ -220,7 +220,7 @@ public final class Utils {
             return androidVersionNames[0];
         }
         if (sdkLevel >= androidVersionNames.length) {
-            return String.format("v%d", sdkLevel);
+            return String.format(Locale.ENGLISH, "v%d", sdkLevel);
         }
         return androidVersionNames[sdkLevel];
     }