diff --git a/spring-web/src/main/java/org/springframework/http/client/SubscriberInputStream.java b/spring-web/src/main/java/org/springframework/http/client/SubscriberInputStream.java
index 480728af959..52a1ba6265f 100644
--- a/spring-web/src/main/java/org/springframework/http/client/SubscriberInputStream.java
+++ b/spring-web/src/main/java/org/springframework/http/client/SubscriberInputStream.java
@@ -209,7 +209,7 @@ final class SubscriberInputStream<T> extends InputStream implements Flow.Subscri
 	}
 
 	private void resume() {
-		if (this.parkedThread != READY) {
+		if (this.parkedThread.get() != READY) {
 			Object old = this.parkedThread.getAndSet(READY);
 			if (old != READY) {
 				LockSupport.unpark((Thread) old);