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-rw-r--r--src/bootstrap/config.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/bootstrap/config.rs b/src/bootstrap/config.rs
index 062820040dc..7818b8b7d51 100644
--- a/src/bootstrap/config.rs
+++ b/src/bootstrap/config.rs
@@ -982,7 +982,8 @@ impl Config {
         config.rust_debug_assertions_std =
             debug_assertions_std.unwrap_or(config.rust_debug_assertions);
         config.rust_overflow_checks = overflow_checks.unwrap_or(default);
-        config.rust_overflow_checks_std = overflow_checks_std.unwrap_or(default);
+        config.rust_overflow_checks_std =
+            overflow_checks_std.unwrap_or(config.rust_overflow_checks);
 
         config.rust_debug_logging = debug_logging.unwrap_or(config.rust_debug_assertions);