diff --git a/dune/istl/bcrsmatrix.hh b/dune/istl/bcrsmatrix.hh
index 30111c0a5020d0979c1c1979344160063817ac28..7abda010552924027b289d11ec20813c10852d9e 100644
--- a/dune/istl/bcrsmatrix.hh
+++ b/dune/istl/bcrsmatrix.hh
@@ -809,7 +809,7 @@ namespace Dune {
     void setImplicitBuildModeParameters(size_type _avg, double _overflow)
     {
       avg = _avg;
-      overflow = _overflow;
+      overflowsize = _overflow;
     }
 
     /**