diff --git a/src/test/java/com/redhat/rhjmc/containerjfr/tui/ws/MessagingServerTest.java b/src/test/java/com/redhat/rhjmc/containerjfr/tui/ws/MessagingServerTest.java
index e9cc4894a1..8a9d209d96 100644
--- a/src/test/java/com/redhat/rhjmc/containerjfr/tui/ws/MessagingServerTest.java
+++ b/src/test/java/com/redhat/rhjmc/containerjfr/tui/ws/MessagingServerTest.java
@@ -167,7 +167,7 @@ void webSocketCloseHandlerShouldRemoveConnection()
     }
 
     @Test
-    void shouldHandleRemovedConnections() {
+    void shouldHandleRemovedConnections() throws Exception {
         String expectedText = "hello world";
         when(crw2.readLine()).thenReturn(expectedText);
 
@@ -191,6 +191,9 @@ void shouldHandleRemovedConnections() {
         String newText = "another message";
         when(crw1.readLine()).thenReturn(newText);
 
+        // FIXME this is a dirty hack. See https://github.com/rh-jmc-team/container-jfr/issues/132
+        Thread.sleep(500);
+
         MatcherAssert.assertThat(server.getClientReader().readLine(), Matchers.equalTo(newText));
         verify(crw1, Mockito.atLeastOnce()).readLine();
         verifyNoMoreInteractions(crw2);