diff --git a/dune/tectonic/myblockproblem.hh b/dune/tectonic/myblockproblem.hh
index 58195440e5d746b7b4ee866f1f2e27dce034818f..00dc48b9cad2d069eec3dda1460567a5c9ab15f1 100644
--- a/dune/tectonic/myblockproblem.hh
+++ b/dune/tectonic/myblockproblem.hh
@@ -1,4 +1,4 @@
-// Based on dune/tnnmg/problem-classes/blocknonlineargsproblem.hh
+// Based on dune/tnnmg/problem-classes/blocknonlineartnnmgproblem.hh
 
 #ifndef MY_BLOCK_PROBLEM_HH
 #define MY_BLOCK_PROBLEM_HH