diff --git a/include/wx/gtk/pen.h b/include/wx/gtk/pen.h
index 40f809b5ef..c6bfbe3b0b 100644
--- a/include/wx/gtk/pen.h
+++ b/include/wx/gtk/pen.h
@@ -9,8 +9,6 @@
 #ifndef _WX_GTK_PEN_H_
 #define _WX_GTK_PEN_H_
 
-typedef signed char wxGTKDash;
-
 //-----------------------------------------------------------------------------
 // wxPen
 //-----------------------------------------------------------------------------
diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index 53968f6631..0fd550d7ac 100644
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -1582,22 +1582,22 @@ void wxWindowDCImpl::SetPen( const wxPen &pen )
         }
     }
 
-    static const wxGTKDash dotted[] = {1, 1};
-    static const wxGTKDash short_dashed[] = {2, 2};
-    static const wxGTKDash wxCoord_dashed[] = {2, 4};
-    static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3};
+    static const wxDash dotted[] = {1, 1};
+    static const wxDash short_dashed[] = {2, 2};
+    static const wxDash wxCoord_dashed[] = {2, 4};
+    static const wxDash dotted_dashed[] = {3, 3, 1, 3};
 
     // We express dash pattern in pen width unit, so we are
     // independent of zoom factor and so on...
     int req_nb_dash;
-    const wxGTKDash *req_dash;
+    const wxDash* req_dash;
 
     GdkLineStyle lineStyle = GDK_LINE_ON_OFF_DASH;
     switch (m_pen.GetStyle())
     {
         case wxPENSTYLE_USER_DASH:
             req_nb_dash = m_pen.GetDashCount();
-            req_dash = (wxGTKDash*)m_pen.GetDash();
+            req_dash = m_pen.GetDash();
             break;
         case wxPENSTYLE_DOT:
             req_nb_dash = 2;
@@ -1629,7 +1629,7 @@ void wxWindowDCImpl::SetPen( const wxPen &pen )
 
     if (req_dash && req_nb_dash)
     {
-        wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
+        wxDash* real_req_dash = new wxDash[req_nb_dash];
         if (real_req_dash)
         {
             for (int i = 0; i < req_nb_dash; i++)
@@ -1640,7 +1640,7 @@ void wxWindowDCImpl::SetPen( const wxPen &pen )
         else
         {
             // No Memory. We use non-scaled dash pattern...
-            gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
+            gdk_gc_set_dashes(m_penGC, 0, const_cast<wxDash*>(req_dash), req_nb_dash);
         }
     }
 
diff --git a/src/gtk/pen.cpp b/src/gtk/pen.cpp
index c23c144c6b..d6d4da8427 100644
--- a/src/gtk/pen.cpp
+++ b/src/gtk/pen.cpp
@@ -54,7 +54,7 @@ public:
         if ( m_dash )
         {
             if ( !data.m_dash ||
-                 memcmp(m_dash, data.m_dash, m_countDashes*sizeof(wxGTKDash)) )
+                 memcmp(m_dash, data.m_dash, m_countDashes*sizeof(wxDash)) )
             {
                 return false;
             }
@@ -78,7 +78,7 @@ public:
     wxPenCap   m_capStyle;
     wxColour   m_colour;
     int        m_countDashes;
-    wxGTKDash *m_dash;
+    const wxDash* m_dash;
 };
 
 //-----------------------------------------------------------------------------
@@ -139,7 +139,7 @@ void wxPen::SetDashes( int number_of_dashes, const wxDash *dash )
     AllocExclusive();
 
     M_PENDATA->m_countDashes = number_of_dashes;
-    M_PENDATA->m_dash = (wxGTKDash *)dash;
+    M_PENDATA->m_dash = dash;
 }
 
 void wxPen::SetColour( unsigned char red, unsigned char green, unsigned char blue )