diff --git a/core/Makefile b/core/Makefile
index f2a524d58cc973ee2c5f695e2d80f986840ae7bd..eb0febb1f7223e2896d81bcae97df77ba409ec04 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -175,7 +175,7 @@ BUILD_VERSION_TAGS += $(BUILD_KEYS)
 BUILD_VERSION_TAGS := $(subst $(space),$(comma),$(sort $(BUILD_VERSION_TAGS)))
 
 # A human-readable string that descibes this build in detail.
-build_desc := $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT) $(PLATFORM_VERSION) $(BUILD_ID) $(BUILD_NUMBER_FROM_FILE) $(BUILD_VERSION_TAGS)
+build_desc := e_$(TARGET_DEVICE)-$(TARGET_BUILD_VARIANT) $(PLATFORM_VERSION) $(BUILD_ID) $(BUILD_NUMBER_FROM_FILE) $(BUILD_VERSION_TAGS)
 $(intermediate_system_build_prop): PRIVATE_BUILD_DESC := $(build_desc)
 
 # The string used to uniquely identify the combined build and product; used by the OTA server.