diff --git a/catalyst-gateway-crates/c509-certificate/.gitignore b/catalyst-gateway-crates/c509-certificate/.gitignore
new file mode 100644
index 0000000000..c1b3e69689
--- /dev/null
+++ b/catalyst-gateway-crates/c509-certificate/.gitignore
@@ -0,0 +1,11 @@
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
\ No newline at end of file