diff --git a/core/Makefile b/core/Makefile
index a9ca138..0b7aa88 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -860,6 +860,10 @@
 
 # -----------------------------------------------------------------
 # OTA update package
+
+ifneq ($(TARGET_SIMULATOR),true)
+ifneq ($(TARGET_PRODUCT),sdk)
+
 name := $(TARGET_PRODUCT)
 ifeq ($(TARGET_BUILD_TYPE),debug)
   name := $(name)_debug
@@ -880,6 +884,8 @@
 .PHONY: otapackage
 otapackage: $(INTERNAL_OTA_PACKAGE_TARGET)
 
+endif    # TARGET_PRODUCT != sdk
+endif    # TARGET_SIMULATOR != true
 
 # -----------------------------------------------------------------
 # installed file list
@@ -982,6 +988,9 @@
 # -----------------------------------------------------------------
 # The update package
 
+ifneq ($(TARGET_SIMULATOR),true)
+ifneq ($(TARGET_PRODUCT),sdk)
+
 name := $(TARGET_PRODUCT)
 ifeq ($(TARGET_BUILD_TYPE),debug)
   name := $(name)_debug
@@ -999,6 +1008,9 @@
 .PHONY: updatepackage
 updatepackage: $(INTERNAL_UPDATE_PACKAGE_TARGET)
 
+endif    # TARGET_PRODUCT != sdk
+endif    # TARGET_SIMULATOR != true
+
 # -----------------------------------------------------------------
 # The emulator package