diff --git a/include/wx/graphics.h b/include/wx/graphics.h
index 7263b6776d..d30fd3b7c1 100644
--- a/include/wx/graphics.h
+++ b/include/wx/graphics.h
@@ -29,8 +29,10 @@ enum wxAntialiasMode
 
 enum wxInterpolationQuality
 {
+    // default interpolation
+    wxINTERPOLATION_DEFAULT,
     // no interpolation
-    wxINTERPOLATION_NONE, // should be 0
+    wxINTERPOLATION_NONE, 
     // fast interpolation, suited for interactivity
     wxINTERPOLATION_FAST,
     // better quality
diff --git a/interface/wx/graphics.h b/interface/wx/graphics.h
index 797238832a..55361daecc 100644
--- a/interface/wx/graphics.h
+++ b/interface/wx/graphics.h
@@ -217,6 +217,8 @@ enum wxAntialiasMode
  */
 enum wxInterpolationQuality
 {
+    /** default interpolation, based on type of context, in general medium quality */
+    wxINTERPOLATION_DEFAULT,
     /** no interpolation */
     wxINTERPOLATION_NONE, 
     /** fast interpolation, suited for interactivity */