diff --git a/include/pybind11/common.h b/include/pybind11/common.h
index 6e079e46..762a1e09 100644
--- a/include/pybind11/common.h
+++ b/include/pybind11/common.h
@@ -242,7 +242,7 @@ struct buffer_info {
         (*this) = std::move(other);
     }
 
-    buffer_info& operator=(buffer_info &&rhs){
+    buffer_info& operator=(buffer_info &&rhs) {
         ptr = rhs.ptr;
         itemsize = rhs.itemsize;
         size = rhs.size;