diff --git a/src/test/java/org/jenkinsci/plugins/workflow/pipelinegraphanalysis/StatusAndTimingTest.java b/src/test/java/org/jenkinsci/plugins/workflow/pipelinegraphanalysis/StatusAndTimingTest.java
index 65f02b7..6effc38 100644
--- a/src/test/java/org/jenkinsci/plugins/workflow/pipelinegraphanalysis/StatusAndTimingTest.java
+++ b/src/test/java/org/jenkinsci/plugins/workflow/pipelinegraphanalysis/StatusAndTimingTest.java
@@ -355,6 +355,7 @@ public void testInProgress() throws Exception {
                 run, 0, exec.getNode("2"), exec.getNode("6"), null);
         assertEquals((double) (currTime - run.getStartTimeInMillis()), (double) tim.getTotalDurationMillis(), 20.0);
         SemaphoreStep.success("wait/1", null);
+        j.waitForCompletion(run);
     }