diff --git a/src/mm/allocator.rs b/src/mm/allocator.rs
index 04f78b4872..cf77a5374b 100644
--- a/src/mm/allocator.rs
+++ b/src/mm/allocator.rs
@@ -50,6 +50,12 @@ unsafe impl GlobalAlloc for LockedAllocator {
 		let layout = Self::align_layout(layout);
 		unsafe { self.0.alloc_zeroed(layout) }
 	}
+
+	unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {
+		let layout = Self::align_layout(layout);
+		let new_size = new_size.align_up(core::mem::size_of::<crossbeam_utils::CachePadded<u8>>());
+		unsafe { self.0.realloc(ptr, layout, new_size) }
+	}
 }
 
 #[cfg(all(test, not(target_os = "none")))]