diff --git a/package/rt-tests/rt-tests.mk b/package/rt-tests/rt-tests.mk
index e0c7748c9c..74d7c6dfe8 100644
--- a/package/rt-tests/rt-tests.mk
+++ b/package/rt-tests/rt-tests.mk
@@ -13,7 +13,9 @@ ifeq ($(BR2_PACKAGE_PYTHON),y)
 RT_TESTS_DEPENDENCIES = python
 endif
 
-ifeq ($(BR2_TOOLCHAIN_HAS_THREADS_NPTL),)
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS_NPTL),y)
+RT_TESTS_HAVE_NPTL=yes
+else
 RT_TESTS_HAVE_NPTL=no
 endif