diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 6e1cb68..6909275 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -130,6 +130,7 @@
 LOCAL_IS_FUZZ_TARGET:=
 LOCAL_IS_HOST_MODULE:=
 LOCAL_IS_RUNTIME_RESOURCE_OVERLAY:=
+LOCAL_IS_UNIT_TEST:=
 LOCAL_JACK_CLASSPATH:=
 LOCAL_JACK_COVERAGE_EXCLUDE_FILTER:=
 LOCAL_JACK_COVERAGE_INCLUDE_FILTER:=