diff --git a/test/iomux_test.c b/test/iomux_test.c
index 498841d..f5f934c 100644
--- a/test/iomux_test.c
+++ b/test/iomux_test.c
@@ -338,7 +338,10 @@ main(int argc, char **argv)
 
     
     iomux_t *mux2 = iomux_create(0, 0);
-    iomux_move(mux, mux2);
+
+    ut_testing("iomux_move(mux, mux2) == 3");
+    int moved_connections = iomux_move(mux, mux2);
+    ut_validate_int(moved_connections, 3);
 
     ut_testing("iomux_write(mux2, client, %s, %d)", TEST_STRING, strlen(TEST_STRING));
     ut_validate_int(iomux_write(mux2, client, TEST_STRING, strlen(TEST_STRING), IOMUX_OUTPUT_MODE_NONE), strlen(TEST_STRING));