diff --git a/index.js b/index.js
index 28d61f73..81660349 100644
--- a/index.js
+++ b/index.js
@@ -7,6 +7,20 @@ module.exports.parse = async ({ message, defaultSchemaFormat }) => {
   message['x-parser-original-payload'] = message.payload;
   message.payload = transformed;
   delete message.schemaFormat;
+
+  // remove that function when https://github.com/asyncapi/spec/issues/622 will be introduced in AsyncAPI spec
+  async function handleKafkaProtocolKey() {
+    if (message.bindings && message.bindings.kafka) {
+      const key = message.bindings.kafka.key;
+      if (key) {
+        const bindingsTransformed = await avroToJsonSchema(key);
+        message['x-parser-original-bindings-kafka-key'] = key;
+        message.bindings.kafka.key = bindingsTransformed;
+      }
+    }
+  }
+
+  await handleKafkaProtocolKey();
 };
 
 module.exports.getMimeTypes = () => {
diff --git a/tests/asyncapi-avro-1.9.0-bindings.yaml b/tests/asyncapi-avro-1.9.0-bindings.yaml
new file mode 100644
index 00000000..10eba82e
--- /dev/null
+++ b/tests/asyncapi-avro-1.9.0-bindings.yaml
@@ -0,0 +1,19 @@
+asyncapi: 2.0.0
+info:
+  title: My API
+  version: '1.0.0'
+channels:
+  mychannel:
+    publish:
+      message:
+        schemaFormat: application/vnd.apache.avro;version=1.9.0
+        payload:
+          $ref: 'schemas/Person-1.9.0-namespace.avsc'
+        bindings:
+          kafka:
+            key:
+              $ref: 'schemas/Person-1.9.0-namespace.avsc'
+          mqtt:
+            x-test:
+              type: string
+
diff --git a/tests/parse.test.js b/tests/parse.test.js
index 68557317..048ef5e4 100644
--- a/tests/parse.test.js
+++ b/tests/parse.test.js
@@ -12,6 +12,9 @@ const outputWithAvro190 = '{"asyncapi":"2.0.0","info":{"title":"My API","version
 const inputWithAvro190WithNamespace = fs.readFileSync(path.resolve(__dirname, './asyncapi-avro-1.9.0-namespace.yaml'), 'utf8');
 const outputWithAvro190ithNamespace = '{"asyncapi":"2.0.0","info":{"title":"My API","version":"1.0.0"},"channels":{"mychannel":{"publish":{"message":{"payload":{"type":"object","properties":{"name":{"type":"string","examples":["Donkey"],"x-parser-schema-id":"<anonymous-schema-1>"},"age":{"oneOf":[{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[123],"x-parser-schema-id":"<anonymous-schema-3>"},{"type":"null","x-parser-schema-id":"<anonymous-schema-4>"}],"default":null,"x-parser-schema-id":"<anonymous-schema-2>"},"favoriteProgrammingLanguage":{"type":"string","enum":["JS","Java","Go","Rust","C"],"default":"JS","x-parser-schema-id":"<anonymous-schema-5>"},"address":{"type":"object","properties":{"zipcode":{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[53003],"x-parser-schema-id":"<anonymous-schema-7>"}},"x-parser-schema-id":"<anonymous-schema-6>"},"someid":{"type":"string","x-parser-schema-id":"<anonymous-schema-8>"}},"x-parser-schema-id":"com.company.Person"},"x-parser-original-schema-format":"application/vnd.apache.avro;version=1.9.0","x-parser-original-payload":{"name":"Person","namespace":"com.company","type":"record","fields":[{"name":"name","type":"string","example":"Donkey"},{"name":"age","type":["null","int"],"default":null,"example":"123"},{"name":"favoriteProgrammingLanguage","type":{"name":"ProgrammingLanguage","type":"enum","symbols":["JS","Java","Go","Rust","C"],"default":"JS"}},{"name":"address","type":{"name":"Address","type":"record","fields":[{"name":"zipcode","type":"int","example":"53003"}]}},{"name":"someid","type":"uuid"}]},"schemaFormat":"application/vnd.aai.asyncapi;version=2.0.0","x-parser-message-parsed":true,"x-parser-message-name":"<anonymous-message-1>"}}}},"x-parser-spec-parsed":true}';
 
+const inputWithAvro190WithBindings = fs.readFileSync(path.resolve(__dirname, './asyncapi-avro-1.9.0-bindings.yaml'), 'utf8');
+const outputWithAvro190WithBindings = '{"asyncapi":"2.0.0","info":{"title":"My API","version":"1.0.0"},"channels":{"mychannel":{"publish":{"message":{"payload":{"type":"object","properties":{"name":{"type":"string","examples":["Donkey"],"x-parser-schema-id":"<anonymous-schema-1>"},"age":{"oneOf":[{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[123],"x-parser-schema-id":"<anonymous-schema-3>"},{"type":"null","x-parser-schema-id":"<anonymous-schema-4>"}],"default":null,"x-parser-schema-id":"<anonymous-schema-2>"},"favoriteProgrammingLanguage":{"type":"string","enum":["JS","Java","Go","Rust","C"],"default":"JS","x-parser-schema-id":"<anonymous-schema-5>"},"address":{"type":"object","properties":{"zipcode":{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[53003],"x-parser-schema-id":"<anonymous-schema-7>"}},"x-parser-schema-id":"<anonymous-schema-6>"},"someid":{"type":"string","x-parser-schema-id":"<anonymous-schema-8>"}},"x-parser-schema-id":"com.company.Person"},"bindings":{"kafka":{"key":{"type":"object","properties":{"name":{"type":"string","examples":["Donkey"]},"age":{"oneOf":[{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[123]},{"type":"null"}],"default":null},"favoriteProgrammingLanguage":{"type":"string","enum":["JS","Java","Go","Rust","C"],"default":"JS"},"address":{"type":"object","properties":{"zipcode":{"type":"integer","minimum":-2147483648,"maximum":2147483647,"examples":[53003]}}},"someid":{"type":"string"}},"x-parser-schema-id":"com.company.Person"}},"mqtt":{"x-test":{"type":"string"}}},"x-parser-original-schema-format":"application/vnd.apache.avro;version=1.9.0","x-parser-original-payload":{"name":"Person","namespace":"com.company","type":"record","fields":[{"name":"name","type":"string","example":"Donkey"},{"name":"age","type":["null","int"],"default":null,"example":"123"},{"name":"favoriteProgrammingLanguage","type":{"name":"ProgrammingLanguage","type":"enum","symbols":["JS","Java","Go","Rust","C"],"default":"JS"}},{"name":"address","type":{"name":"Address","type":"record","fields":[{"name":"zipcode","type":"int","example":"53003"}]}},{"name":"someid","type":"uuid"}]},"x-parser-original-bindings-kafka-key":{"name":"Person","namespace":"com.company","type":"record","fields":[{"name":"name","type":"string","example":"Donkey"},{"name":"age","type":["null","int"],"default":null,"example":"123"},{"name":"favoriteProgrammingLanguage","type":{"name":"ProgrammingLanguage","type":"enum","symbols":["JS","Java","Go","Rust","C"],"default":"JS"}},{"name":"address","type":{"name":"Address","type":"record","fields":[{"name":"zipcode","type":"int","example":"53003"}]}},{"name":"someid","type":"uuid"}]},"schemaFormat":"application/vnd.aai.asyncapi;version=2.0.0","x-parser-message-parsed":true,"x-parser-message-name":"<anonymous-message-1>"}}}},"x-parser-spec-parsed":true}';
+
 parser.registerSchemaParser(avroSchemaParser);
 
 describe('parse()', function() {
@@ -27,4 +30,8 @@ describe('parse()', function() {
     const result = await parser.parse(inputWithAvro190WithNamespace, { path: __filename });
     expect(JSON.stringify(result.json())).toEqual(outputWithAvro190ithNamespace);
   });
+  it('should parse Avro schema in kafka bindings', async function() {
+    const result = await parser.parse(inputWithAvro190WithBindings, { path: __filename });
+    expect(JSON.stringify(result.json())).toEqual(outputWithAvro190WithBindings);
+  });
 });