diff --git a/ruby/autobuilder/src/main.rs b/ruby/autobuilder/src/main.rs
index 8f0f1b48d0d..ae4aa816190 100644
--- a/ruby/autobuilder/src/main.rs
+++ b/ruby/autobuilder/src/main.rs
@@ -19,6 +19,7 @@ fn main() -> std::io::Result<()> {
         .arg("--include-extension=.erb")
         .arg("--include-extension=.gemspec")
         .arg("--include=**/Gemfile")
+        .arg("--exclude=**/.git")
         .arg("--size-limit=5m")
         .arg("--language=ruby")
         .arg("--working-dir=.")