diff --git a/metadata/uk.co.yahoo.p1rpp.calendartrigger.yml b/metadata/uk.co.yahoo.p1rpp.calendartrigger.yml
index 26a55518ff..00b9a8f0a4 100644
--- a/metadata/uk.co.yahoo.p1rpp.calendartrigger.yml
+++ b/metadata/uk.co.yahoo.p1rpp.calendartrigger.yml
@@ -49,7 +49,7 @@ Builds:
 
   - versionName: '3.1'
     versionCode: 8
-    commit: 3.1
+    commit: '3.1'
     subdir: app
     gradle:
       - yes