diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index 224fa39d5c..c1c7177d3a 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -31,6 +31,7 @@
 # include <Inventor/SoPickedPoint.h>
 # include <Inventor/details/SoPointDetail.h>
 # include <Inventor/nodes/SoCamera.h>
+# include <Inventor/SbLine.h>
 # include <Inventor/SbTime.h>
 
 /// Qt Include Files