diff --git a/src/liballoc/raw_vec.rs b/src/liballoc/raw_vec.rs
index 590e82357fb7108b6fa9ce85048030072ea4d792..2bf40490e78190167af519e93a61ae321469dc9e 100644
--- a/src/liballoc/raw_vec.rs
+++ b/src/liballoc/raw_vec.rs
@@ -520,6 +520,7 @@ fn grow(
                 Layout::array::<T>(cap).map_err(|_| CapacityOverflow)?
             }
         };
+        alloc_guard(new_layout.size())?;
 
         let memory = if let Some((ptr, old_layout)) = self.current_memory() {
             debug_assert_eq!(old_layout.align(), new_layout.align());