diff --git a/scripts/pre-submit b/scripts/pre-submit
index a06accf..69f76e1 100755
--- a/scripts/pre-submit
+++ b/scripts/pre-submit
@@ -4,6 +4,9 @@
 BUILD="$(mktemp --directory --tmpdir=.)"
 trap 'rm -rf "$BUILD"' EXIT
 
+meson format --recursive --inplace || true
+git diff --quiet
+
 # Ensure the test suite passes in the default configuration. Note
 # that we don't specify -Dabi=... - the default is equivalent to
 # -Dabi=deprecated,stable,testing.