diff --git a/tests/Android.mk b/tests/Android.mk
index 525b39e..e9ae710 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -22,11 +22,14 @@ LOCAL_STATIC_JAVA_LIBRARIES := \
     org.cyanogenmod.platform.sdk \
     android-support-test
 
+LOCAL_DEX_PREOPT := false
+
 LOCAL_SRC_FILES := $(call all-subdir-java-files, src/)
 
 LOCAL_PACKAGE_NAME := CMPlatformTests
 LOCAL_CERTIFICATE := platform
 LOCAL_JAVA_LIBRARIES := android.test.runner
-LOCAL_PROGUARD_ENABLED := disabled
+LOCAL_PROGUARD_ENABLED := optimization shrinktests
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
 include $(BUILD_PACKAGE)
diff --git a/tests/proguard.flags b/tests/proguard.flags
new file mode 100644
index 0000000..27fa7d4
--- /dev/null
+++ b/tests/proguard.flags
@@ -0,0 +1,13 @@
+-injars ../../../out/target/common/obj/JAVA_LIBRARIES/org.cyanogenmod.platform.sdk_intermediates/classes.jack
+-dontskipnonpubliclibraryclasses
+-dontskipnonpubliclibraryclassmembers
+-dontwarn android.hardware.Sensor
+-dontwarn android.test.AndroidTestRunner
+-dontwarn java.util.concurrent.ConcurrentLinkedDeque
+-dontwarn android.cts.util.**
+-dontwarn junit.**
+-forceprocessing
+-dontobfuscate
+-whyareyoukeeping class cyanogenmod.util.ColorUtils
+-verbose
+-dump fuck.txt
\ No newline at end of file