diff --git a/debian/xsfbs/xsfbs.mk b/debian/xsfbs/xsfbs.mk
index 7b8206e..dbb2872 100755
--- a/debian/xsfbs/xsfbs.mk
+++ b/debian/xsfbs/xsfbs.mk
@@ -354,6 +354,21 @@ $(STAMP_DIR)/genscripts: $(STAMP_DIR)/stampdir
 debian/shlibs.local:
 	cat debian/*.shlibs >$@
 
+SERVERABI = $(shell cat /usr/share/xserver-xorg/serverabiver 2>/dev/null)
+SERVER_DEPENDS = xserver-xorg-core (>= $(SERVERABI))
+ifeq ($(PACKAGE),)
+PACKAGE=$(shell awk '/^Package:/ { print $$2; exit }' < debian/control)
+endif
+
+.PHONY: serverabi
+serverabi:
+ifeq ($(SERVERABI),)
+	@echo error: xserver-xorg-dev needs to be installed
+	@exit 1
+else
+	echo "xserver:Depends=$(SERVER_DEPENDS)" >> debian/$(PACKAGE).substvars
+endif
+
 include debian/xsfbs/xsfbs-autoreconf.mk
 
 # vim:set noet ai sts=8 sw=8 tw=0: