diff --git a/api/system/current.txt b/api/system/current.txt
index 9987962..7b9ba1d 100644
--- a/api/system/current.txt
+++ b/api/system/current.txt
@@ -16,7 +16,7 @@ package pawletos.device.system {
     method public boolean isFeatureEnabled(String!);
     method public boolean isUserSetupComplete();
     method public void setFeatureEnabled(String!, boolean);
-    field public static final String SERVICE_NAME = "pawlet";
+    field public static final String! SERVICE_NAME = "pawlet";
   }
 
   public final class PawletSystem {