diff --git a/Android.mk b/Android.mk
index e10fef1..130575f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -302,11 +302,6 @@
     LOCAL_CFLAGS += -DHAVE_CAPABILITIES
 endif
 
-# Auto filled build flag
-ifeq ($(PLATFORM_VERSION), 5.0.1)
-    LOCAL_CFLAGS += -DANDROID_VERSION=5
-endif
-
 LOCAL_ADDITIONAL_DEPENDENCIES := \
     dump_image \
     erase_image \
@@ -451,12 +446,7 @@
 LOCAL_MODULE := libaosprecovery
 LOCAL_MODULE_TAGS := eng optional
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/libmincrypt/includes
-LOCAL_SRC_FILES := adb_install.cpp asn1_decoder.cpp bootloader.cpp mtdutils/mtdutils.c legacy_property_service.c
-ifeq ($(PLATFORM_VERSION), 5.0.1)
-    LOCAL_SRC_FILES += verifier.cpp
-else
-    LOCAL_SRC_FILES += verifierold.cpp
-endif
+LOCAL_SRC_FILES := adb_install.cpp asn1_decoder.cpp bootloader.cpp mtdutils/mtdutils.c legacy_property_service.c verifier.cpp
 LOCAL_SHARED_LIBRARIES += libc liblog libcutils libmtdutils libfusesideload libmincrypttwrp
 
 ifneq ($(BOARD_RECOVERY_BLDRMSG_OFFSET),)
@@ -493,7 +483,8 @@
     $(commands_recovery_local_path)/toolbox/Android.mk \
     $(commands_recovery_local_path)/libmincrypt/Android.mk \
     $(commands_recovery_local_path)/twrpTarMain/Android.mk \
-    $(commands_recovery_local_path)/mtp/Android.mk
+    $(commands_recovery_local_path)/mtp/Android.mk \
+    $(commands_recovery_local_path)/minzip/Android.mk
 
 ifneq ($(TARGET_ARCH), arm64)
     include $(commands_recovery_local_path)/dosfstools/Android.mk
@@ -503,11 +494,6 @@
     include $(commands_recovery_local_path)/crypto/lollipop/Android.mk
     include $(commands_recovery_local_path)/crypto/scrypt/Android.mk
 endif
-ifeq ($(PLATFORM_VERSION), 5.0.1)
-    include $(commands_recovery_local_path)/minzip/Android.mk
-else
-    include $(commands_recovery_local_path)/minzipold/Android.mk
-endif
 ifeq ($(BUILD_ID), GINGERBREAD)
     TW_NO_EXFAT := true
 endif