diff --git a/dune/mmdg/dg.hh b/dune/mmdg/dg.hh
index 80d2b0205eb540474c6d7c93198c1f5534e08d3d..a410cc0351b056caa1da8a15008dd8a8776244d5 100644
--- a/dune/mmdg/dg.hh
+++ b/dune/mmdg/dg.hh
@@ -174,7 +174,7 @@ public:
             }
 */
             //NOTE: probably unnecessary
-            quadraticIntregrals[i][j] = quadraticIntregrals[j][i];
+            quadraticIntregrals[j][i] = quadraticIntregrals[i][j];
           }
         }
         std::cout << "linearIntegrals:\n" << linearIntegrals << "\n\n";