diff --git a/src/constants.ts b/src/constants.ts
index 7552df4..bb8214a 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -62,7 +62,7 @@ export const defaultAppRules = (appName: string): { [type: string]: { ref: strin
           write: 
             "auth.addr === $userAddress && " +
             "(getValue(`/apps/" + `${appName}` + "/billingConfig/minCost`) === 0 || " +
-            "(getValue(`/apps/" + `${appName}` + "/balance/` + $userAddress + `/balance`)  >= getValue(`/apps/" + `${appName}` + "/billingConfig/minCost`))"
+            "(getValue(`/apps/" + `${appName}` + "/balance/` + $userAddress + `/balance`)  >= getValue(`/apps/" + `${appName}` + "/billingConfig/minCost`)))"
         },
       },
     },