diff --git a/test/mpi/threads/comm/idup_deadlock.c b/test/mpi/threads/comm/idup_deadlock.c
index 92dc7b418e0..5afd6f95222 100644
--- a/test/mpi/threads/comm/idup_deadlock.c
+++ b/test/mpi/threads/comm/idup_deadlock.c
@@ -41,6 +41,7 @@ MTEST_THREAD_RETURN_TYPE test_comm_dup(void *arg)
             wait = 0;
             for (i = 0; i < NUM_THREADS; i++)
                 wait += start_idup[i];
+            MTest_thread_yield();
         } while (wait > NUM_THREADS / 2);
     }
 
diff --git a/test/mpi/util/mtest_thread_abt.h b/test/mpi/util/mtest_thread_abt.h
index e663e3745d8..d4998a9381c 100644
--- a/test/mpi/util/mtest_thread_abt.h
+++ b/test/mpi/util/mtest_thread_abt.h
@@ -111,6 +111,14 @@ int MTest_thread_lock_free(MTEST_THREAD_LOCK_TYPE * lock)
     return 0;
 }
 
+int MTest_thread_yield(void)
+{
+    int ret;
+    ret = ABT_thread_yield();
+    MTEST_ABT_ERROR(ret, "ABT_thread_yield");
+    return 0;
+}
+
 /* -------------------------------------------- */
 #define HAVE_MTEST_THREAD_BARRIER 1
 
diff --git a/test/mpi/util/mtest_thread_pthread.h b/test/mpi/util/mtest_thread_pthread.h
index 62db23ab55e..a09acae46b9 100644
--- a/test/mpi/util/mtest_thread_pthread.h
+++ b/test/mpi/util/mtest_thread_pthread.h
@@ -80,6 +80,11 @@ int MTest_thread_lock_free(MTEST_THREAD_LOCK_TYPE * lock)
     return err;
 }
 
+int MTest_thread_yield(void)
+{
+    return 0;
+}
+
 /*----------------------------------------------------------------*/
 #if defined(HAVE_PTHREAD_BARRIER_INIT)
 
diff --git a/test/mpi/util/mtest_thread_win.h b/test/mpi/util/mtest_thread_win.h
index c4f8dbfb268..d051dc2a9b9 100644
--- a/test/mpi/util/mtest_thread_win.h
+++ b/test/mpi/util/mtest_thread_win.h
@@ -90,3 +90,8 @@ int MTest_thread_lock_free(MTEST_THREAD_LOCK_TYPE * lock)
     }
     return MTestReturnValue(errs);
 }
+
+int MTest_thread_yield(void)
+{
+    return 0;
+}