diff --git a/Rust.gitignore b/Rust.gitignore
index ff47c2d77d9194f7856b1f8244ed91e6814964a5..6985cf1bd09ddd9ef8516d37668d37e78dddf38c 100644
--- a/Rust.gitignore
+++ b/Rust.gitignore
@@ -9,3 +9,6 @@ Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb