diff --git a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
index 022f75e..2814c63 100644
--- a/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/4.0/AudioPrimaryHidlHalTest.cpp
@@ -117,6 +117,10 @@
                 ASSERT_NE(0U, activeMicrophones.size());
             }
             stream->close();
+            // Workaround for b/139329877. Ensures the stream gets closed on the audio hal side.
+            stream.clear();
+            IPCThreadState::self()->flushCommands();
+            usleep(1000);
             if (efGroup) {
                 EventFlag::deleteEventFlag(&efGroup);
             }