diff --git a/src/Gui/propertyeditor/PropertyItem.cpp b/src/Gui/propertyeditor/PropertyItem.cpp
index b4662e7e5f..3eed1ade82 100644
--- a/src/Gui/propertyeditor/PropertyItem.cpp
+++ b/src/Gui/propertyeditor/PropertyItem.cpp
@@ -2214,7 +2214,7 @@ void PropertyStringListItem::setValue(const QVariant& value)
         text.replace(QString::fromUtf8("'"),QString::fromUtf8("\\'"));
 
         std::string pystr = Base::Tools::escapedUnicodeFromUtf8(text.toUtf8());
-        str << "u\"" << pystr.c_str() << "\"";
+        str << "u\"" << pystr.c_str() << "\", ";
     }
     str << "]";
     setPropertyValue(data);