diff --git a/src/slic3r/GUI/WebGuideDialog.cpp b/src/slic3r/GUI/WebGuideDialog.cpp
index 6d3afca61..655c33f97 100644
--- a/src/slic3r/GUI/WebGuideDialog.cpp
+++ b/src/slic3r/GUI/WebGuideDialog.cpp
@@ -898,7 +898,7 @@ int GuideFrame::LoadProfile()
             } else {
                 //cout << "is a file" << endl;
                 //cout << iter->path().string() << endl;
-                wxString strVendor = wxString(iter->path().string()).BeforeLast('.');
+                wxString strVendor = from_u8(iter->path().string()).BeforeLast('.');
                 strVendor          = strVendor.AfterLast( '\\');
                 strVendor          = strVendor.AfterLast('\/');