diff --git a/apps/opencs/model/doc/runner.cpp b/apps/opencs/model/doc/runner.cpp
index 5a0bc39be..84bc61a9a 100644
--- a/apps/opencs/model/doc/runner.cpp
+++ b/apps/opencs/model/doc/runner.cpp
@@ -81,7 +81,7 @@ void CSMDoc::Runner::start (bool delayed)
         arguments << ("--script-run="+mStartup->fileName());;
 
         arguments <<
-            QString::fromUtf8 (("--data="+mProjectPath.parent_path().string()).c_str());
+            QString::fromUtf8 (("--data=\""+mProjectPath.parent_path().string()+"\"").c_str());
 
         for (std::vector<std::string>::const_iterator iter (mContentFiles.begin());
             iter!=mContentFiles.end(); ++iter)
diff --git a/apps/opencs/view/render/instancemode.cpp b/apps/opencs/view/render/instancemode.cpp
index f5b15cb55..cf51e93b7 100644
--- a/apps/opencs/view/render/instancemode.cpp
+++ b/apps/opencs/view/render/instancemode.cpp
@@ -92,7 +92,7 @@ osg::Vec3f CSVRender::InstanceMode::getScreenCoords(const osg::Vec3f& pos)
 }
 
 CSVRender::InstanceMode::InstanceMode (WorldspaceWidget *worldspaceWidget, QWidget *parent)
-: EditMode (worldspaceWidget, QIcon (":placeholder"), Mask_Reference, "Instance editing",
+: EditMode (worldspaceWidget, QIcon (":placeholder"), Mask_Reference | Mask_Terrain, "Instance editing",
   parent), mSubMode (0), mSubModeId ("move"), mSelectionMode (0), mDragMode (DragMode_None),
   mDragAxis (-1), mLocked (false), mUnitScaleDist(1)
 {