diff --git a/tools/version.sh b/tools/version.sh
index 114c38752..a950bae2f 100755
--- a/tools/version.sh
+++ b/tools/version.sh
@@ -24,7 +24,7 @@ fi
 last_svn_revision=6962
 last_svn_hash="16cd907fe7482cb54a7374cd28b8501f138116be"
 
-git_revision=$(expr $last_svn_revision + $(git log --pretty=oneline $last_svn_hash..HEAD 2>/dev/null | wc -l))
+git_revision=$(expr $last_svn_revision + $(git rev-list --count $last_svn_hash..HEAD))
 git_version_str=$(git describe --exact-match 2> /dev/null)
 installer_version='0.0.0'
 resource_version='0, 0, 0'