diff --git a/llvm/include/llvm/ADT/SmallVector.h b/llvm/include/llvm/ADT/SmallVector.h
index 5577b09fee89c..36b324355ee10 100644
--- a/llvm/include/llvm/ADT/SmallVector.h
+++ b/llvm/include/llvm/ADT/SmallVector.h
@@ -221,6 +221,8 @@ class SmallVectorTemplateCommon
       this->assertSafeToAdd(From, To - From);
       this->assertSafeToAdd(To - 1, To - From);
     }
+    (void)From;
+    (void)To;
   }
 
   /// Reserve enough space to add one element, and return the updated element