diff --git a/src/Mod/Sketcher/App/SolverGeometryExtension.h b/src/Mod/Sketcher/App/SolverGeometryExtension.h
index abc531ec39..b21e4e1f8d 100644
--- a/src/Mod/Sketcher/App/SolverGeometryExtension.h
+++ b/src/Mod/Sketcher/App/SolverGeometryExtension.h
@@ -25,8 +25,6 @@
 
 #include <Mod/Part/App/GeometryExtension.h>
 
-#include <Mod/Sketcher/App/Constraint.h>
-
 namespace Sketcher
 {