diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index a02c0a384e..e64a9e1587 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -3012,7 +3012,7 @@ int SketchObject::split(int GeoId, const Base::Vector3d &point)
     std::vector<Constraint *> newConstraints;
 
     Base::Vector3d startPoint, endPoint, splitPoint;
-    double radius, startAngle, endAngle, splitAngle;
+    double radius, startAngle, endAngle, splitAngle=0.0;
     unsigned int longestPart = 0;