diff --git a/include/wx/richtext/richtextbuffer.h b/include/wx/richtext/richtextbuffer.h
index cd131df4e9..6f79ca90d3 100644
--- a/include/wx/richtext/richtextbuffer.h
+++ b/include/wx/richtext/richtextbuffer.h
@@ -372,11 +372,8 @@ public:
 class WXDLLIMPEXP_RICHTEXT wxTextAttrDimensionConverter
 {
 public:
-    wxTextAttrDimensionConverter(wxDC& dc, double scale = 1.0, const wxSize& parentSize = wxDefaultSize)
-    { m_ppi = dc.GetPPI().x; m_scale = scale; m_parentSize = parentSize; }
-
-    wxTextAttrDimensionConverter(int ppi, double scale = 1.0, const wxSize& parentSize = wxDefaultSize)
-    { m_ppi = ppi; m_scale = scale; m_parentSize = parentSize; }
+    wxTextAttrDimensionConverter(wxDC& dc, double scale = 1.0, const wxSize& parentSize = wxDefaultSize);
+    wxTextAttrDimensionConverter(int ppi, double scale = 1.0, const wxSize& parentSize = wxDefaultSize);
     
     int GetPixels(const wxTextAttrDimension& dim, int direction = wxHORIZONTAL) const;
     int GetTenthsMM(const wxTextAttrDimension& dim) const;
diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 86be3e8394..e7a1a328f5 100644
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -8656,6 +8656,16 @@ void wxTextAttrDimension::CollectCommonAttributes(const wxTextAttrDimension& att
         absentAttr.SetPresent(true);
 }
 
+wxTextAttrDimensionConverter::wxTextAttrDimensionConverter(wxDC& dc, double scale, const wxSize& parentSize)
+{
+    m_ppi = dc.GetPPI().x; m_scale = scale; m_parentSize = parentSize;
+}
+
+wxTextAttrDimensionConverter::wxTextAttrDimensionConverter(int ppi, double scale, const wxSize& parentSize)
+{
+    m_ppi = ppi; m_scale = scale; m_parentSize = parentSize;
+}
+
 int wxTextAttrDimensionConverter::ConvertTenthsMMToPixels(int units) const
 {
     return wxRichTextObject::ConvertTenthsMMToPixels(m_ppi, units, m_scale);