diff --git a/tools/enforce_style.sh b/tools/enforce_style.sh
new file mode 100755
index 0000000..8d178c8
--- /dev/null
+++ b/tools/enforce_style.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+find \( -iname "*.ml" -or -iname "*.mli" \) -exec perl -pi -e 's/( |\t)+$//g' {} \;
+find \( -iname "*.ml" -or -iname "*.mli" \) -exec perl -pi -e 's/\t/  /g' {} \;