diff --git a/iscsi-scst/Makefile_user_space_only b/iscsi-scst/Makefile_user_space_only
index 9ab5cc678..3c323539e 100644
--- a/iscsi-scst/Makefile_user_space_only
+++ b/iscsi-scst/Makefile_user_space_only
@@ -19,6 +19,7 @@ include/iscsi_scst_itf_ver.h: include/iscsi_scst.h
 	echo "/* Autogenerated, don't edit */" >include/iscsi_scst_itf_ver.h
 	echo "" >>include/iscsi_scst_itf_ver.h
 	echo -n "#define ISCSI_SCST_INTERFACE_VERSION " >>include/iscsi_scst_itf_ver.h
+	echo -n "ISCSI_VERSION_STRING \"_\" " >>include/iscsi_scst_itf_ver.h
 	echo "\"`sha1sum include/iscsi_scst.h|awk '{printf $$1}'`\"" >>include/iscsi_scst_itf_ver.h
 
 install: all