1 files changed, 5 insertions, 2 deletions
diff --git a/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts b/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts
index 4735cecfa..6cb9f64fb 100644
--- a/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts
+++ b/packages/abi-gen-wrappers/src/generated-wrappers/i_validator.ts
@@ -40,8 +40,11 @@ export class IValidatorContract extends BaseContract {
             const rawCallResult = await self._web3Wrapper.callAsync(callDataWithDefaults, defaultBlock);
             BaseContract._throwIfRevertWithReasonCallResult(rawCallResult);
             const abiEncoder = self._lookupAbiEncoder('isValidSignature(bytes32,address,bytes)');
-            const resultArray = abiEncoder.decodeReturnValuesAsArrayOrNull(rawCallResult);
-            return resultArray[0];
+            // tslint:disable boolean-naming
+            const result = abiEncoder.strictDecodeReturnValue<boolean
+        >(rawCallResult);
+            // tslint:enable boolean-naming
+            return result;
         },
     };
     public static async deployFrom0xArtifactAsync(