diff --git a/CleanSpec.mk b/CleanSpec.mk
index f348692dd2..ca6617850f 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -299,6 +299,9 @@ $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
 
+# 5.0.1
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/build_id.mk b/core/build_id.mk
index f404c81d57..146ce2a683 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=LRX21Q
+export BUILD_ID=LRX22C
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 8cb8d26262..36e4e98fa1 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -41,7 +41,7 @@ ifeq "" "$(PLATFORM_VERSION)"
   # which is the version that we reveal to the end user.
   # Update this value when the platform version changes (rather
   # than overriding it somewhere else).  Can be an arbitrary string.
-  PLATFORM_VERSION := 5.0
+  PLATFORM_VERSION := 5.0.1
 endif
 
 ifeq "" "$(PLATFORM_SDK_VERSION)"