diff --git a/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java b/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
index c06c175b..3dae9d95 100644
--- a/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
+++ b/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
@@ -116,7 +116,7 @@ public class NettyWriteResponseFilter implements GlobalFilter, Ordered {
 			byteBuf.release();
 			return buffer;
 		}
-		throw new IllegalArgumentException("Unkown DataBufferFactory type " + bufferFactory.getClass());
+		throw new IllegalArgumentException("Unknown DataBufferFactory type " + bufferFactory.getClass());
 	}
 
 	private void cleanup(ServerWebExchange exchange) {