diff --git a/packages/web3-eth-contract/src/decoders/EventLogDecoder.js b/packages/web3-eth-contract/src/decoders/EventLogDecoder.js
index af44affce6f..d21ea0893c1 100644
--- a/packages/web3-eth-contract/src/decoders/EventLogDecoder.js
+++ b/packages/web3-eth-contract/src/decoders/EventLogDecoder.js
@@ -43,7 +43,7 @@ export default class EventLogDecoder {
     decode(abiItemModel, response) {
         let argTopics = response.topics;
 
-        if (abiItemModel.anonymous) {
+        if (!abiItemModel.anonymous) {
             argTopics = response.topics.slice(1);
         }
 
diff --git a/packages/web3-eth-contract/tests/src/decoders/AllEventsLogDecoderTest.js b/packages/web3-eth-contract/tests/src/decoders/AllEventsLogDecoderTest.js
index 5e306f247cf..e5fb12ee87e 100644
--- a/packages/web3-eth-contract/tests/src/decoders/AllEventsLogDecoderTest.js
+++ b/packages/web3-eth-contract/tests/src/decoders/AllEventsLogDecoderTest.js
@@ -62,7 +62,7 @@ describe('AllEventsLogDecoderTest', () => {
 
         expect(abiModelMock.getEventBySignature).toHaveBeenCalledWith('0x0');
 
-        expect(abiCoderMock.decodeLog).toHaveBeenCalledWith([], '0x0', ['0x0']);
+        expect(abiCoderMock.decodeLog).toHaveBeenCalledWith([], '0x0', []);
 
         expect(abiItemModel.getInputs).toHaveBeenCalled();
     });
diff --git a/packages/web3-eth-contract/tests/src/decoders/EventLogDecoderTest.js b/packages/web3-eth-contract/tests/src/decoders/EventLogDecoderTest.js
index 9dd888a8bc6..40094ddbf43 100644
--- a/packages/web3-eth-contract/tests/src/decoders/EventLogDecoderTest.js
+++ b/packages/web3-eth-contract/tests/src/decoders/EventLogDecoderTest.js
@@ -56,7 +56,7 @@ describe('EventLogDecoderTest', () => {
 
         expect(decodedLog.returnValues).toEqual(['0x0']);
 
-        expect(abiCoderMock.decodeLog).toHaveBeenCalledWith([], '0x0', ['0x0']);
+        expect(abiCoderMock.decodeLog).toHaveBeenCalledWith([], '0x0', []);
 
         expect(abiItemModel.getInputs).toHaveBeenCalled();
     });