diff --git a/spring-web/src/main/java/org/springframework/http/server/reactive/ReactorServerHttpResponse.java b/spring-web/src/main/java/org/springframework/http/server/reactive/ReactorServerHttpResponse.java
index 64c8a10f749..d128184078f 100644
--- a/spring-web/src/main/java/org/springframework/http/server/reactive/ReactorServerHttpResponse.java
+++ b/spring-web/src/main/java/org/springframework/http/server/reactive/ReactorServerHttpResponse.java
@@ -114,7 +114,7 @@ public class ReactorServerHttpResponse extends AbstractServerHttpResponse
 
 	@Override
 	public Mono<Void> writeWith(File file, long position, long count) {
-		return doCommit(() -> this.response.sendFile(file, position, count));
+		return doCommit(() -> this.response.sendFile(file.toPath(), position, count));
 	}
 
 	private static Publisher<ByteBuf> toByteBufs(Publisher<? extends DataBuffer> dataBuffers) {