diff --git a/lib/googletest/Makefile.inc b/lib/googletest/Makefile.inc
index 5d3222736e6b..cf6e98b5d8ab 100644
--- a/lib/googletest/Makefile.inc
+++ b/lib/googletest/Makefile.inc
@@ -8,6 +8,4 @@ GOOGLETEST_SRCROOT= ${GTEST_DIR}/googletest
 
 CXXFLAGS+=	${GTESTS_FLAGS}
 
-NO_WTHREAD_SAFETY=
-
 WARNS?=		6
diff --git a/share/mk/googletest.test.inc.mk b/share/mk/googletest.test.inc.mk
index b632c909e088..dc0cfb7c8b39 100644
--- a/share/mk/googletest.test.inc.mk
+++ b/share/mk/googletest.test.inc.mk
@@ -10,3 +10,5 @@ GTESTS_CXXFLAGS+= -std=c++11
 
 # XXX: src.libnames.mk should handle adding this directory.
 GTESTS_CXXFLAGS+= -I${DESTDIR}${INCLUDEDIR}/private
+
+NO_WTHREAD_SAFETY=