diff --git a/src/StdMeshers/StdMeshers_ViscousLayers.cxx b/src/StdMeshers/StdMeshers_ViscousLayers.cxx
index c391333bb..73ceef874 100644
--- a/src/StdMeshers/StdMeshers_ViscousLayers.cxx
+++ b/src/StdMeshers/StdMeshers_ViscousLayers.cxx
@@ -1363,7 +1363,7 @@ bool _ViscousBuilder::sortEdges( _SolidData&                    data,
   list< TGeomID > shapesToSmooth;
   
   SMESH_MesherHelper helper( *_mesh );
-  bool ok;
+  bool ok = true;
 
   for ( unsigned iS = 0; iS < edgesByGeom.size(); ++iS )
   {