diff --git a/spring-cloud-gateway-server-mvc/src/main/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchange.java b/spring-cloud-gateway-server-mvc/src/main/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchange.java
index b5171634e2..a45810aa39 100644
--- a/spring-cloud-gateway-server-mvc/src/main/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchange.java
+++ b/spring-cloud-gateway-server-mvc/src/main/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchange.java
@@ -19,9 +19,11 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.util.List;
 
 import org.springframework.cloud.gateway.server.mvc.config.GatewayMvcProperties;
 import org.springframework.cloud.gateway.server.mvc.handler.ProxyExchange;
+import org.springframework.http.MediaType;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.util.Assert;
 import org.springframework.util.StreamUtils;
@@ -42,7 +44,7 @@ protected int copyResponseBody(ClientHttpResponse clientResponse, InputStream in
 
 		int transferredBytes;
 
-		if (properties.getStreamingMediaTypes().contains(clientResponse.getHeaders().getContentType())) {
+		if (isStreamingMediaType(properties.getStreamingMediaTypes(), clientResponse.getHeaders().getContentType())) {
 			transferredBytes = copyResponseBodyWithFlushing(inputStream, outputStream);
 		}
 		else {
@@ -52,6 +54,15 @@ protected int copyResponseBody(ClientHttpResponse clientResponse, InputStream in
 		return transferredBytes;
 	}
 
+	private static boolean isStreamingMediaType(List<MediaType> streamingMediaTypes, MediaType mediaType) {
+		for (var streamingMediaType : streamingMediaTypes) {
+			if (streamingMediaType.equalsTypeAndSubtype(mediaType)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	private int copyResponseBodyWithFlushing(InputStream inputStream, OutputStream outputStream) throws IOException {
 		int readBytes;
 		var totalReadBytes = 0;
diff --git a/spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchangeTests.java b/spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchangeTests.java
index fe203b1518..28863df9bb 100644
--- a/spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchangeTests.java
+++ b/spring-cloud-gateway-server-mvc/src/test/java/org/springframework/cloud/gateway/server/mvc/common/AbstractProxyExchangeTests.java
@@ -69,6 +69,22 @@ public void copyResponseBodyForTextEventStream() throws IOException {
 		verify(outputStream, times(4)).flush();
 	}
 
+	@Test
+	public void copyResponseBodyForTextEventStreamWithParameter() throws IOException {
+		MockClientHttpResponse mockResponse = new MockClientHttpResponse(new byte[0], 200);
+		MediaType mediaType = MediaType.parseMediaType(MediaType.TEXT_EVENT_STREAM_VALUE + ";charset=UTF-8");
+		mockResponse.getHeaders().setContentType(mediaType);
+
+		InputStream inputStream = mock(InputStream.class);
+		when(inputStream.read(any())).thenReturn(1).thenReturn(1).thenReturn(1).thenReturn(-1);
+		OutputStream outputStream = mock(OutputStream.class);
+
+		int result = new TestProxyExchange().copyResponseBody(mockResponse, inputStream, outputStream);
+
+		assertThat(result).isEqualTo(3);
+		verify(outputStream, times(4)).flush();
+	}
+
 	@Test
 	public void copyResponseBodyWithoutContentType() throws IOException {
 		MockClientHttpResponse mockResponse = new MockClientHttpResponse(new byte[0], 200);