diff --git a/Makefile b/Makefile
index cef9d30..488bd40 100644
--- a/Makefile
+++ b/Makefile
@@ -144,6 +144,7 @@ $(BUILD)/linuxboot.rom: bin/utk $(DXE_FFS)
 		$(ROM) \
 		remove_dxes_except boards/$(BOARD)/image-files.txt \
 		$(foreach ffs,$(DXE_FFS), insert_dxe $(ffs)) \
+		$(UTK_EXTRA_OPS) \
 		save $@
 endif
 
diff --git a/boards/winterfell/Makefile.board b/boards/winterfell/Makefile.board
index 7c5971c..f74b211 100644
--- a/boards/winterfell/Makefile.board
+++ b/boards/winterfell/Makefile.board
@@ -64,3 +64,10 @@ $(BUILD)/nvram1.ffs: $(NVRAM1_FFS)
 $(BUILD)/nvram2.ffs: $(NVRAM2_FFS)
 	./bin/nvram-compact < $< > $@
 
+#
+# UTK Compact the NVRAM region
+#
+
+nvram-nvar-keep := boards/$(BOARD)/nvar-keep.txt
+
+UTK_EXTRA_OPS := invalidate_nvar_except $(nvram-nvar-keep) nvram-compact
diff --git a/boards/winterfell/nvar-keep.txt b/boards/winterfell/nvar-keep.txt
new file mode 100644
index 0000000..88f9428
--- /dev/null
+++ b/boards/winterfell/nvar-keep.txt
@@ -0,0 +1,3 @@
+StdDefaults
+CpuS3Resume
+Setup