diff --git a/scst/include/scst.h b/scst/include/scst.h
index 28e79fc02..0ab09b9eb 100644
--- a/scst/include/scst.h
+++ b/scst/include/scst.h
@@ -250,7 +250,7 @@ static inline bool list_entry_in_list(const struct list_head *entry)
 }
 
 #define SCST_INTERFACE_VERSION	    \
-		SCST_VERSION_STRING "$Revision$" SCST_CONST_VERSION
+		SCST_VERSION_STRING SCST_INTF_VER SCST_CONST_VERSION
 
 #define SCST_LOCAL_NAME			"scst_local"
 
diff --git a/scst/include/scst_const.h b/scst/include/scst_const.h
index 3b0e57201..ca17ec628 100644
--- a/scst/include/scst_const.h
+++ b/scst/include/scst_const.h
@@ -35,6 +35,8 @@
 #include <errno.h>
 #endif
 
+#include "scst_itf_ver.h"
+
 /*
  * Version numbers, the same as for the kernel.
  *
@@ -51,7 +53,7 @@
 #define SCST_VERSION_NAME	    "3.1.0-pre1"
 #define SCST_VERSION_STRING	    SCST_VERSION_NAME SCST_VERSION_STRING_SUFFIX
 
-#define SCST_CONST_VERSION "$Revision$"
+#define SCST_CONST_VERSION SCST_CONST_INTF_VER
 
 /*** Shared constants between user and kernel spaces ***/
 
diff --git a/scst/include/scst_user.h b/scst/include/scst_user.h
index 1cda6c214..55f1672d2 100644
--- a/scst/include/scst_user.h
+++ b/scst/include/scst_user.h
@@ -32,7 +32,7 @@
 #define DEV_USER_PATH			"/dev/"
 #define DEV_USER_VERSION_NAME		SCST_VERSION_NAME
 #define DEV_USER_VERSION		\
-	DEV_USER_VERSION_NAME "$Revision$" SCST_CONST_VERSION
+	DEV_USER_VERSION_NAME DEV_USER_INTF_VER SCST_CONST_VERSION
 
 #define SCST_USER_PARSE_STANDARD	0
 #define SCST_USER_PARSE_CALL		1
diff --git a/scst/src/Makefile b/scst/src/Makefile
index 32575c7ef..1ec0a3b3f 100644
--- a/scst/src/Makefile
+++ b/scst/src/Makefile
@@ -73,7 +73,23 @@ ifeq ($(INSTALL_MOD_PATH),)
   export INSTALL_MOD_PATH := $(DESTDIR)
 endif
 
-all:
+ifeq ($(SCST_INC_DIR),)
+SCST_INC_DIR := ../include
+endif
+
+SCST_INTF_VER_FILE := $(SCST_INC_DIR)/scst_itf_ver.h
+
+$(SCST_INTF_VER_FILE): $(SCST_INC_DIR)/scst.h $(SCST_INC_DIR)/scst_const.h $(SCST_INC_DIR)/scst_user.h
+	echo "/* Autogenerated, don't edit */" >$(SCST_INTF_VER_FILE)
+	echo "" >>$(SCST_INTF_VER_FILE)
+	echo -n "#define SCST_INTF_VER " >>$(SCST_INTF_VER_FILE)
+	echo "\"`sha1sum $(SCST_INC_DIR)/scst.h|awk '{printf $$1}'`\"" >>$(SCST_INTF_VER_FILE)
+	echo -n "#define SCST_CONST_INTF_VER " >>$(SCST_INTF_VER_FILE)
+	echo "\"`sha1sum $(SCST_INC_DIR)/scst_const.h|awk '{printf $$1}'`\"" >>$(SCST_INTF_VER_FILE)
+	echo -n "#define DEV_USER_INTF_VER " >>$(SCST_INTF_VER_FILE)
+	echo "\"`sha1sum $(SCST_INC_DIR)/scst_user.h|awk '{printf $$1}'`\"" >>$(SCST_INTF_VER_FILE)
+
+all: $(SCST_INTF_VER_FILE)
 	$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_DEV=m
 
 scst:
@@ -171,6 +187,7 @@ clean:
 	cd $(DEV_HANDLERS_DIR) && $(MAKE) $@
 
 extraclean: clean
+	rm -f $(SCST_INTF_VER_FILE)
 	cd $(DEV_HANDLERS_DIR) && $(MAKE) $@
 	rm -f *.orig *.rej