diff --git a/fdroidserver/common.py b/fdroidserver/common.py
index 62e8313e..f3c277dc 100644
--- a/fdroidserver/common.py
+++ b/fdroidserver/common.py
@@ -2012,6 +2012,7 @@ def ensure_final_value(packageName, arsc, value):
             except (ValueError, TypeError):
                 pass
         return returnValue
+    return ''
 
 
 def is_apk_and_debuggable_aapt(apkfile):