diff --git a/core/config.mk b/core/config.mk
index 3b1c157..ff68f56 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -156,8 +156,15 @@
 BUILD_HOST_DALVIK_JAVA_LIBRARY := $(BUILD_SYSTEM)/host_dalvik_java_library.mk
 BUILD_HOST_DALVIK_STATIC_JAVA_LIBRARY := $(BUILD_SYSTEM)/host_dalvik_static_java_library.mk
 
-BUILD_HOST_TEST_CONFIG:= $(BUILD_SYSTEM)/host_test_config.mk
-BUILD_TARGET_TEST_CONFIG:= $(BUILD_SYSTEM)/target_test_config.mk
+BUILD_HOST_TEST_CONFIG := $(BUILD_SYSTEM)/host_test_config.mk
+BUILD_TARGET_TEST_CONFIG := $(BUILD_SYSTEM)/target_test_config.mk
+
+INSTRUMENTATION_TEST_CONFIG_TEMPLATE := $(BUILD_SYSTEM)/instrumentation_test_config_template.xml
+NATIVE_TEST_CONFIG_TEMPLATE := $(BUILD_SYSTEM)/native_test_config_template.xml
+EMPTY_TEST_CONFIG := $(BUILD_SYSTEM)/empty_test_config.xml
+
+# Tool to generate TradeFed test config file automatically.
+AUTOGEN_TEST_CONFIG_SCRIPT := build/make/tools/auto_gen_test_config.py
 
 # ###############################################################
 # Parse out any modifier targets.