diff --git a/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/IncomingRequest.java b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/IncomingRequest.java
index 9aa801cae..8505300d2 100644
--- a/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/IncomingRequest.java
+++ b/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/IncomingRequest.java
@@ -62,7 +62,7 @@ public class IncomingRequest {
 	 * @return
 	 */
 	public boolean isJsonPatchRequest() {
-		return isPatchRequest() && RestMediaTypes.JSON_PATCH_JSON.equals(contentType);
+		return isPatchRequest() && RestMediaTypes.JSON_PATCH_JSON.isCompatibleWith(contentType);
 	}
 
 	/**
@@ -71,7 +71,7 @@ public class IncomingRequest {
 	 * @return
 	 */
 	public boolean isJsonMergePatchRequest() {
-		return isPatchRequest() && RestMediaTypes.MERGE_PATCH_JSON.equals(contentType);
+		return isPatchRequest() && RestMediaTypes.MERGE_PATCH_JSON.isCompatibleWith(contentType);
 	}
 
 	/**
diff --git a/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTest.java b/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTests.java
similarity index 97%
rename from spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTest.java
rename to spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTests.java
index 4dfb4c5c7..e5b868b11 100644
--- a/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTest.java
+++ b/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/AugmentingHandlerMappingUnitTests.java
@@ -35,7 +35,7 @@ import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
  * 
  * @author Oliver Gierke
  */
-public class AugmentingHandlerMappingUnitTest {
+public class AugmentingHandlerMappingUnitTests {
 
 	@Configuration
 	static class Config {
diff --git a/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/IncomingRequestUnitTests.java b/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/IncomingRequestUnitTests.java
new file mode 100644
index 000000000..b63a0dd44
--- /dev/null
+++ b/spring-data-rest-webmvc/src/test/java/org/springframework/data/rest/webmvc/IncomingRequestUnitTests.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.rest.webmvc;
+
+import static org.hamcrest.CoreMatchers.*;
+import static org.junit.Assert.*;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.springframework.http.server.ServletServerHttpRequest;
+import org.springframework.mock.web.MockHttpServletRequest;
+
+/**
+ * Unit tests for {@link IncomingRequest}.
+ * 
+ * @author Oliver Gierke
+ */
+public class IncomingRequestUnitTests {
+
+	MockHttpServletRequest request;
+
+	@Before
+	public void setUp() {
+		this.request = new MockHttpServletRequest("PATCH", "/");
+	}
+
+	/**
+	 * @see DATAREST-498
+	 */
+	@Test
+	public void identifiesJsonPatchRequestForRequestWithContentTypeParameters() {
+
+		request.addHeader("Content-Type", "application/json-patch+json;charset=UTF-8");
+
+		IncomingRequest incomingRequest = new IncomingRequest(new ServletServerHttpRequest(request));
+
+		assertThat(incomingRequest.isJsonPatchRequest(), is(true));
+		assertThat(incomingRequest.isJsonMergePatchRequest(), is(false));
+	}
+
+	/**
+	 * @see DATAREST-498
+	 */
+	@Test
+	public void identifiesJsonMergePatchRequestForRequestWithContentTypeParameters() {
+
+		request.addHeader("Content-Type", "application/merge-patch+json;charset=UTF-8");
+
+		IncomingRequest incomingRequest = new IncomingRequest(new ServletServerHttpRequest(request));
+
+		assertThat(incomingRequest.isJsonPatchRequest(), is(false));
+		assertThat(incomingRequest.isJsonMergePatchRequest(), is(true));
+	}
+}