diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index c848140b11..81ff77e0c5 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -134,6 +134,7 @@ SketchObject::SketchObject()
     lastDoF=0;
     lastHasConflict=false;
     lastHasRedundancies=false;
+    lastHasPartialRedundancies=false;
     lastHasMalformedConstraints=false;
     lastSolverStatus=0;
     lastSolveTime=0;