diff --git a/contrib/pre-commit b/contrib/pre-commit
new file mode 100644
index 0000000..4b7e99b
--- /dev/null
+++ b/contrib/pre-commit
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+FMTCMD="${CARGO_FMT_CMD:cargo fmt -- --check}"
+
+# Redirect output to stderr.
+exec 1>&2
+
+unset RUST_LOG
+set -e
+
+# check everything else
+$FMTCMD