diff --git a/tests/Android.mk b/tests/Android.mk
index fba7a8d..658e8e2 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -7,6 +7,11 @@
 
 LOCAL_JAVA_LIBRARIES := android.test.runner
 
+# Do not compress dictionary files to mmap dict data runtime
+LOCAL_AAPT_FLAGS += -0 .dict
+# Do not compress test data file
+LOCAL_AAPT_FLAGS += -0 .txt
+
 # Include all test java files.
 LOCAL_SRC_FILES := $(call all-java-files-under, src)