diff --git a/src/StdMeshers/StdMeshers_Projection_2D.cxx b/src/StdMeshers/StdMeshers_Projection_2D.cxx
index b4734fa0c..60917a9fc 100644
--- a/src/StdMeshers/StdMeshers_Projection_2D.cxx
+++ b/src/StdMeshers/StdMeshers_Projection_2D.cxx
@@ -72,8 +72,6 @@ StdMeshers_Projection_2D::StdMeshers_Projection_2D(int hypId, int studyId, SMESH
   :SMESH_2D_Algo(hypId, studyId, gen)
 {
   _name = "Projection_2D";
-  _shapeType = (1 << TopAbs_FACE);      // 1 bit per shape type
-
   _compatibleHypothesis.push_back("ProjectionSource2D");
   _sourceHypo = 0;
 }
@@ -808,7 +806,7 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
   SMESH_subMesh* tgtSubMesh = tgtMesh->GetSubMesh( tgtFace );
 
   if ( tgtMesh == srcMesh ) {
-    if ( !TAssocTool::MakeComputed( srcSubMesh ))
+    if ( !TAssocTool::MakeComputed( srcSubMesh ) || !srcSubMesh->IsMeshComputed() )
       return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
   }
   else {