1 files changed, 1 insertions, 1 deletions
diff --git a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
index 61d3ac3a9..4cef60172 100644
--- a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
+++ b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
@@ -37,7 +37,7 @@ export abstract class DataType {
     }
 
     public decode(calldata: string, rules?: DecodingRules, selector?: string): any {
-        if (!_.isUndefined(selector) && !calldata.startsWith(selector)) {
+        if (!_.isUndefined(selector) && !_.startsWith(calldata, selector)) {
             throw new Error(
                 `Tried to decode calldata, but it was missing the function selector. Expected prefix '${selector}'. Got '${calldata}'.`,
             );