diff --git a/Android.mk b/Android.mk
index 01819ee..fe631d9 100644
--- a/Android.mk
+++ b/Android.mk
@@ -449,9 +449,7 @@
 use-art-full:
 	adb root && sleep 3
 	adb shell stop
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.dex
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.oat
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.art
+	adb shell rm -rf $(ART_DALVIK_CACHE_DIR)/*
 	adb shell setprop dalvik.vm.dex2oat-flags ""
 	adb shell setprop dalvik.vm.image-dex2oat-flags ""
 	adb shell setprop persist.sys.dalvik.vm.lib.1 libart.so
@@ -461,9 +459,7 @@
 use-art-smart:
 	adb root && sleep 3
 	adb shell stop
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.dex
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.oat
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.art
+	adb shell rm -rf $(ART_DALVIK_CACHE_DIR)/*
 	adb shell setprop dalvik.vm.dex2oat-flags "--compiler-filter=interpret-only"
 	adb shell setprop dalvik.vm.image-dex2oat-flags ""
 	adb shell setprop persist.sys.dalvik.vm.lib.1 libart.so
@@ -473,9 +469,7 @@
 use-art-interpret-only:
 	adb root && sleep 3
 	adb shell stop
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.dex
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.oat
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.art
+	adb shell rm -rf $(ART_DALVIK_CACHE_DIR)/*
 	adb shell setprop dalvik.vm.dex2oat-flags "--compiler-filter=interpret-only"
 	adb shell setprop dalvik.vm.image-dex2oat-flags "--compiler-filter=interpret-only"
 	adb shell setprop persist.sys.dalvik.vm.lib.1 libart.so
@@ -485,9 +479,7 @@
 use-art-verify-none:
 	adb root && sleep 3
 	adb shell stop
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.dex
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.oat
-	adb shell rm $(ART_DALVIK_CACHE_DIR)/*.art
+	adb shell rm -rf $(ART_DALVIK_CACHE_DIR)/*
 	adb shell setprop dalvik.vm.dex2oat-flags "--compiler-filter=verify-none"
 	adb shell setprop dalvik.vm.image-dex2oat-flags "--compiler-filter=verify-none"
 	adb shell setprop persist.sys.dalvik.vm.lib.1 libart.so