diff --git a/scripts/update_single_include.sh b/scripts/update_single_include.sh
index 68a30ad..b7e1141 100755
--- a/scripts/update_single_include.sh
+++ b/scripts/update_single_include.sh
@@ -1,8 +1,9 @@
 #!/usr/bin/env sh
 
-if [ "${MESON_SOURCE_ROOT}" != "" ]
-then
-    cd ${MESON_SOURCE_ROOT}
-fi
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+SOURCE_ROOT=$(dirname "${DIR}")
+
+echo "Move to Source Root: ${SOURCE_ROOT}"
+cd ${SOURCE_ROOT}
 
 python3 amalgamate/amalgamate.py -c amalgamate/config.json -s include -v yes