diff --git a/tools/dicttool/Android.mk b/tools/dicttool/Android.mk
index b0b47af..5bd836a 100644
--- a/tools/dicttool/Android.mk
+++ b/tools/dicttool/Android.mk
@@ -16,13 +16,16 @@
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
-MAKEDICT_CORE_SOURCE_DIRECTORY := ../../java/src/com/android/inputmethod/latin/makedict
+LATINIME_CORE_SOURCE_DIRECTORY := ../../java/src/com/android/inputmethod/latin
+MAKEDICT_CORE_SOURCE_DIRECTORY := $(LATINIME_CORE_SOURCE_DIRECTORY)/makedict
 
 LOCAL_MAIN_SRC_FILES := $(call all-java-files-under,$(MAKEDICT_CORE_SOURCE_DIRECTORY))
 LOCAL_TOOL_SRC_FILES := $(call all-java-files-under,src)
 LOCAL_SRC_FILES := $(LOCAL_TOOL_SRC_FILES) \
         $(filter-out $(addprefix %/, $(notdir $(LOCAL_TOOL_SRC_FILES))), $(LOCAL_MAIN_SRC_FILES)) \
-        $(call all-java-files-under,tests)
+        $(call all-java-files-under,tests) \
+        $(LATINIME_CORE_SOURCE_DIRECTORY)/Constants.java
+
 LOCAL_JAR_MANIFEST := etc/manifest.txt
 LOCAL_MODULE := dicttool_aosp
 LOCAL_JAVA_LIBRARIES := junit