diff --git a/cc/operators/autodiff.h b/cc/operators/autodiff.h
index a8979bb..efd9f1b 100644
--- a/cc/operators/autodiff.h
+++ b/cc/operators/autodiff.h
@@ -219,4 +219,4 @@ bool test_sigmoidscalar() {
     return true;
 }
 
-}
+}
\ No newline at end of file