diff --git a/akka-http-core/src/test/scala/akka/http/impl/engine/ws/MessageSpec.scala b/akka-http-core/src/test/scala/akka/http/impl/engine/ws/MessageSpec.scala
index 7c0bb13899..b1fb3027e9 100644
--- a/akka-http-core/src/test/scala/akka/http/impl/engine/ws/MessageSpec.scala
+++ b/akka-http-core/src/test/scala/akka/http/impl/engine/ws/MessageSpec.scala
@@ -741,8 +741,8 @@ class MessageSpec extends FreeSpec with Matchers with WithMaterializerSpec {
               00000000 # empty mask
           """
 
-        pushInput(header)
         EventFilter[ProtocolException](occurrences = 1).intercept {
+          pushInput(header)
           expectProtocolErrorOnNetwork()
         }
       }