diff --git a/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp b/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
index 4296a3ee34..64b66e1524 100644
--- a/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
+++ b/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
@@ -128,6 +128,7 @@ public:
             case Sketcher::Tangent:
             case Sketcher::Equal:
             case Sketcher::Symmetric:
+	    case Sketcher::Blocked:
                 break;
             case Sketcher::Distance:
             case Sketcher::DistanceX:
@@ -161,6 +162,7 @@ public:
             static QIcon horiz( Gui::BitmapFactory().pixmap("Constraint_Horizontal") );
             static QIcon vert ( Gui::BitmapFactory().pixmap("Constraint_Vertical") );
             static QIcon lock ( Gui::BitmapFactory().pixmap("Sketcher_ConstrainLock") );
+	    static QIcon block ( Gui::BitmapFactory().pixmap("Sketcher_ConstrainBlocked") );
             static QIcon coinc( Gui::BitmapFactory().pixmap("Constraint_PointOnPoint") );
             static QIcon para ( Gui::BitmapFactory().pixmap("Constraint_Parallel") );
             static QIcon perp ( Gui::BitmapFactory().pixmap("Constraint_Perpendicular") );
@@ -195,6 +197,8 @@ public:
                 return vert;
             case Sketcher::Coincident:
                 return coinc;
+	    case Sketcher::Blocked:
+		return block;
             case Sketcher::PointOnObject:
                 return pntoo;
             case Sketcher::Parallel:
@@ -268,6 +272,7 @@ public:
         case Sketcher::Horizontal:
         case Sketcher::Vertical:
         case Sketcher::Coincident:
+	case Sketcher::Blocked:
         case Sketcher::PointOnObject:
         case Sketcher::Parallel:
         case Sketcher::Perpendicular:
@@ -766,6 +771,7 @@ void TaskSketcherConstrains::slotConstraintsChanged(void)
         case Sketcher::Tangent:
         case Sketcher::Equal:
         case Sketcher::Symmetric:
+	case Sketcher::Blocked:
             visible = showNormal || showNamed;
             break;
         case Sketcher::Distance: