diff --git a/Makefile.in b/Makefile.in
index 50363600b..7a555d844 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -64,7 +64,10 @@ build:
 		echo "Doing so now."; \
 		sh configure; \
 	fi
-	@if [ -d .hg ] ; then \
+	@if [ -d .git ] ; then \
+		revh=`git log -1 --date=short --pretty=format:%cd_%h 2>/dev/null | sed -e s/-//g -e s/_/-/`;\
+		[ -z "$$revh" ] || echo '#define SERNO "'$$revh'"' >include/serno.h ; \
+	elif [ -d .hg ] ; then \
 		revh=`hg parents --template '{date|shortdate}_{node|short}' 2>/dev/null | sed -e s/-//g -e s/_/-/`;\
 		[ -z "$$revh" ] || echo '#define SERNO "'$$revh'"' >include/serno.h ; \
 	fi