diff --git a/src/bootstrap/src/utils/tests/git.rs b/src/bootstrap/src/utils/tests/git.rs
index bd40f398c7b10..d9dd9ab980088 100644
--- a/src/bootstrap/src/utils/tests/git.rs
+++ b/src/bootstrap/src/utils/tests/git.rs
@@ -129,6 +129,9 @@ impl GitCtx {
 
     fn git_cmd(&self) -> Command {
         let mut cmd = Command::new("git");
+        cmd.env("GIT_CONFIG_NOSYSTEM", "1");
+        cmd.env("GIT_CONFIG_SYSTEM", "/tmp/nonexistent");
+        cmd.env("GIT_CONFIG_GLOBAL", "/tmp/nonexistent");
         cmd.current_dir(&self.dir);
         cmd
     }