diff --git a/opm/core/pressure/IncompTpfa.cpp b/opm/core/pressure/IncompTpfa.cpp
index 68e0e8e3b..a66ab4cbb 100644
--- a/opm/core/pressure/IncompTpfa.cpp
+++ b/opm/core/pressure/IncompTpfa.cpp
@@ -118,7 +118,7 @@ namespace Opm
 	pressure.resize(grid_.number_of_cells);
 	faceflux.resize(grid_.number_of_faces);
 
-        ifs_tpfa_solution soln;
+        ifs_tpfa_solution soln = { 0 };
         soln.cell_press = &pressure[0];
         soln.face_flux  = &faceflux[0];