diff --git a/build/build-macos.sh b/build/build-macos.sh
index 1648b57..2b3337e 100755
--- a/build/build-macos.sh
+++ b/build/build-macos.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -x
 cd "$(dirname "$0")"
 
 # Get the git commit / branch and write it into build.py.