diff --git a/vlib/v/tests/init_global_test.v b/vlib/v/tests/init_global_test.v
index 791b4a73fd..227f0e3ff4 100644
--- a/vlib/v/tests/init_global_test.v
+++ b/vlib/v/tests/init_global_test.v
@@ -128,6 +128,7 @@ fn test_global_mutex() {
 	} else {
 		f2 = 17.0
 	}
+	mtx.unlock()
 	mtx.@rlock()
 	assert (f1 == 17.0 && f2 == 34.0625) || (f1 == 34.0625 && f2 == 17.0)
 	mtx.runlock()