diff --git a/.gitignore b/.gitignore
index e2a3069..7316468 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,13 @@
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+# Generated by Cargo
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+
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+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
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 *~
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