diff --git a/Makefile b/Makefile
index 7c762e1..b6bdc95 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ export PERLDIR=${PREFIX}/share/perl5
 export SOURCE_DATE_EPOCH ?= $(shell dpkg-parsechangelog -STimestamp)
 
 ARCH=all
-GITVERSION:=$(shell cat .git/refs/heads/master)
+GITVERSION:=$(shell git rev-parse HEAD)
 
 DEB=${PACKAGE}_${VERSION}-${PKGREL}_${ARCH}.deb