diff --git a/src/Mod/Sketcher/App/Constraint.cpp b/src/Mod/Sketcher/App/Constraint.cpp
index 4bcb73d0f9ea..2bdbe740bf6c 100644
--- a/src/Mod/Sketcher/App/Constraint.cpp
+++ b/src/Mod/Sketcher/App/Constraint.cpp
@@ -29,6 +29,7 @@
#include
#include
#include
+#include
#include
#include "Constraint.h"
@@ -174,8 +175,9 @@ unsigned int Constraint::getMemSize (void) const
void Constraint::Save (Writer &writer) const
{
+ std::string encodeName = App::Property::encodeAttribute(Name);
writer.Stream() << writer.ind() << "Type==InternalAlignment)
writer.Stream()