diff --git a/resources/icons/PrusaSlicer-gcodeviewer-mac-128px.png b/resources/icons/PrusaSlicer-gcodeviewer-mac_128px.png
similarity index 100%
rename from resources/icons/PrusaSlicer-gcodeviewer-mac-128px.png
rename to resources/icons/PrusaSlicer-gcodeviewer-mac_128px.png
diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index 31acc1c57..51dbc201d 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -146,7 +146,7 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
         break;
     case GUI_App::EAppMode::GCodeViewer:
         m_taskbar_icon = std::make_unique<GCodeViewerTaskBarIcon>(wxTBI_DOCK);
-        m_taskbar_icon->SetIcon(wxIcon(Slic3r::var("PrusaSlicer-gcodeviewer-mac-128px.png"), wxBITMAP_TYPE_PNG), "G-code Viewer");
+        m_taskbar_icon->SetIcon(wxIcon(Slic3r::var("PrusaSlicer-gcodeviewer-mac_128px.png"), wxBITMAP_TYPE_PNG), "G-code Viewer");
         break;
     }
 #endif // __APPLE__