diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/HandlerResultHandlerSupport.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/HandlerResultHandlerSupport.java
index e974f42703e..bf2fbe214bc 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/HandlerResultHandlerSupport.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/HandlerResultHandlerSupport.java
@@ -156,6 +156,7 @@ public abstract class HandlerResultHandlerSupport implements Ordered {
 		}
 
 		if (selected != null) {
+			selected = selected.removeQualityValue();
 			if (logger.isDebugEnabled()) {
 				logger.debug("Using '" + selected + "' given " + acceptableTypes +
 						" and supported " + producibleTypes);
diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/result/HandlerResultHandlerTests.java b/spring-webflux/src/test/java/org/springframework/web/reactive/result/HandlerResultHandlerTests.java
index 98121a60719..28c3522088f 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/result/HandlerResultHandlerTests.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/result/HandlerResultHandlerTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -51,7 +51,7 @@ public class HandlerResultHandlerTests {
 
 
 	@Test
-	public void usesContentTypeResolver() throws Exception {
+	void usesContentTypeResolver() {
 		TestResultHandler resultHandler = new TestResultHandler(new FixedContentTypeResolver(IMAGE_GIF));
 		List<MediaType> mediaTypes = Arrays.asList(IMAGE_JPEG, IMAGE_GIF, IMAGE_PNG);
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path"));
@@ -61,7 +61,7 @@ public class HandlerResultHandlerTests {
 	}
 
 	@Test
-	public void producibleMediaTypesRequestAttribute() throws Exception {
+	void producibleMediaTypesRequestAttribute() {
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path"));
 		exchange.getAttributes().put(HandlerMapping.PRODUCIBLE_MEDIA_TYPES_ATTRIBUTE, Collections.singleton(IMAGE_GIF));
 
@@ -72,7 +72,7 @@ public class HandlerResultHandlerTests {
 	}
 
 	@Test  // SPR-9160
-	public void sortsByQuality() throws Exception {
+	void sortsByQuality() {
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path")
 				.header("Accept", "text/plain; q=0.5, application/json"));
 
@@ -83,7 +83,7 @@ public class HandlerResultHandlerTests {
 	}
 
 	@Test
-	public void charsetFromAcceptHeader() throws Exception {
+	void charsetFromAcceptHeader() {
 		MediaType text8859 = MediaType.parseMediaType("text/plain;charset=ISO-8859-1");
 		MediaType textUtf8 = MediaType.parseMediaType("text/plain;charset=UTF-8");
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path").accept(text8859));
@@ -93,7 +93,7 @@ public class HandlerResultHandlerTests {
 	}
 
 	@Test // SPR-12894
-	public void noConcreteMediaType() throws Exception {
+	void noConcreteMediaType() {
 		List<MediaType> producible = Collections.singletonList(ALL);
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path"));
 		MediaType actual = this.resultHandler.selectMediaType(exchange, () -> producible);
@@ -101,6 +101,17 @@ public class HandlerResultHandlerTests {
 		assertThat(actual).isEqualTo(APPLICATION_OCTET_STREAM);
 	}
 
+	@Test
+	void removeQualityParameter() {
+		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/path")
+				.header("Accept", "text/plain; q=0.5"));
+
+		List<MediaType> mediaTypes = Arrays.asList(APPLICATION_JSON, TEXT_PLAIN);
+		MediaType actual = this.resultHandler.selectMediaType(exchange, () -> mediaTypes);
+
+		assertThat(actual).isEqualTo(TEXT_PLAIN);
+	}
+
 
 	@SuppressWarnings("WeakerAccess")
 	private static class TestResultHandler extends HandlerResultHandlerSupport {