1 files changed, 3 insertions, 0 deletions
diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
index 3f8e3fe5312..e6b88ea58c9 100644
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
@@ -460,6 +460,9 @@ impl Build {
         if self.config.rust_optimize {
             cargo.arg("--release");
         }
+        if self.config.vendor {
+            cargo.arg("--frozen");
+        }
         return cargo
     }