diff --git a/script/build-libgit2-static.sh b/script/build-libgit2-static.sh
index 096c5c6..26efc8e 100755
--- a/script/build-libgit2-static.sh
+++ b/script/build-libgit2-static.sh
@@ -2,7 +2,7 @@
 
 set -ex
 
-ROOT="$(cd "$0/../.." && echo "${PWD}")"
+ROOT="$(cd "$(dirname "$0")/.." && echo "${PWD}")"
 BUILD_PATH="${ROOT}/static-build"
 VENDORED_PATH="${ROOT}/vendor/libgit2"