diff --git a/core/sysprop.mk b/core/sysprop.mk
index dc6f2c4..3362487 100644
--- a/core/sysprop.mk
+++ b/core/sysprop.mk
@@ -79,6 +79,7 @@
     echo "ro.$(1).build.version.release=$(PLATFORM_VERSION_LAST_STABLE)" >> $(2);\
     echo "ro.$(1).build.version.release_or_codename=$(PLATFORM_VERSION)" >> $(2);\
     echo "ro.$(1).build.version.sdk=$(PLATFORM_SDK_VERSION)" >> $(2);\
+    echo "ro.$(1).build.version.sdk_minor=$(PLATFORM_SDK_MINOR_VERSION)" >> $(2);\
 
 endef
 
diff --git a/core/version_util.mk b/core/version_util.mk
index 0e34634..1d8c643 100644
--- a/core/version_util.mk
+++ b/core/version_util.mk
@@ -61,6 +61,12 @@
 PLATFORM_SDK_VERSION := $(RELEASE_PLATFORM_SDK_VERSION)
 .KATI_READONLY := PLATFORM_SDK_VERSION
 
+ifdef PLATFORM_SDK_MINOR_VERSION
+  $(error Do not set PLATFORM_SDK_MINOR_VERSION directly. Use RELEASE_PLATFORM_SDK_MINOR_VERSION. value: $(PLATFORM_SDK_MINOR_VERSION))
+endif
+PLATFORM_SDK_MINOR_VERSION := $(RELEASE_PLATFORM_SDK_MINOR_VERSION)
+.KATI_READONLY := PLATFORM_SDK_MINOR_VERSION
+
 ifdef PLATFORM_SDK_EXTENSION_VERSION
   $(error Do not set PLATFORM_SDK_EXTENSION_VERSION directly. Use RELEASE_PLATFORM_SDK_EXTENSION_VERSION. value: $(PLATFORM_SDK_EXTENSION_VERSION))
 endif