diff --git a/src/numpy_cpp.h b/src/numpy_cpp.h
index f1b7ffaa015d..c41e49d32374 100644
--- a/src/numpy_cpp.h
+++ b/src/numpy_cpp.h
@@ -403,7 +403,7 @@ class array_view : public detail::array_view_accessors<array_view, T, ND>
         Py_XDECREF(m_arr);
     }
 
-    const array_view& operator=(const array_view &other)
+    array_view& operator=(const array_view &other)
     {
         if (this != &other)
         {