Follow Martin K's advice on what the argument should be.

diff --git a/source/lac/trilinos_sparse_matrix.cc b/source/lac/trilinos_sparse_matrix.cc
index c7667ec143a296257a4d16d1951d68d723f85cce..78b09270d6f1b4b322d858dfc9c5b1e5dd660eb3 100644 (file)
--- a/source/lac/trilinos_sparse_matrix.cc
+++ b/source/lac/trilinos_sparse_matrix.cc
@@ -811,7 +811,7 @@ namespace TrilinosWrappers
     else
       nonlocal_matrix.reset();
 
-    compress(VectorOperation::unknown);
+    compress(VectorOperation::insert);
   }