diff --git a/src/gui/viewer.cpp b/src/gui/viewer.cpp
index 6e05b552..977633a8 100644
--- a/src/gui/viewer.cpp
+++ b/src/gui/viewer.cpp
@@ -26,8 +26,8 @@
 
 #include <wx/webview.h>
 
-Viewer::Viewer(wxWindow *parent, const wxString& title, const std::string& path) : wxFrame(parent, wxID_ANY, title) {
-    wxWebView * web = wxWebView::New(this, wxID_ANY, boss::ToFileURL(path));
+Viewer::Viewer(wxWindow *parent, const wxString& title, const wxString& url) : wxFrame(parent, wxID_ANY, title) {
+    wxWebView * web = wxWebView::New(this, wxID_ANY, url);
 
     web->Bind(wxEVT_WEBVIEW_NAVIGATING, &Viewer::OnNavigationStart, this);
 
diff --git a/src/gui/viewer.h b/src/gui/viewer.h
index 49cb925b..aab30f78 100644
--- a/src/gui/viewer.h
+++ b/src/gui/viewer.h
@@ -30,7 +30,7 @@
 
 class Viewer : public wxFrame {
 public:
-    Viewer(wxWindow *parent, const wxString& title, const std::string& path);
+    Viewer(wxWindow *parent, const wxString& title, const wxString& url);
 
     void OnNavigationStart(wxWebViewEvent& event);
 };