1 files changed, 4 insertions, 1 deletions
diff --git a/packages/utils/src/abi_encoder/evm_data_types/uint.ts b/packages/utils/src/abi_encoder/evm_data_types/uint.ts
index 5180f0cf3..06cde4eea 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/uint.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/uint.ts
@@ -46,9 +46,12 @@ export class UIntDataType extends AbstractBlobDataType {
         return encodedValue;
     }
 
-    public decodeValue(calldata: RawCalldata): BigNumber {
+    public decodeValue(calldata: RawCalldata): BigNumber|number {
         const valueBuf = calldata.popWord();
         const value = EncoderMath.safeDecodeNumericValue(valueBuf, UIntDataType._MIN_VALUE, this._maxValue);
+        if (this._width === 8) {
+            return value.toNumber();
+        }
         return value;
     }