diff --git a/aplicmap/ogcws.map b/aplicmap/ogcws.map
index 5e5207f..eb6123f 100644
--- a/aplicmap/ogcws.map
+++ b/aplicmap/ogcws.map
@@ -7,6 +7,16 @@ MAP
  IMAGECOLOR 255 255 255
  SIZE 450 450
  STATUS ON
+     OUTPUTFORMAT
+       NAME "png"
+       MIMETYPE "image/png"
+       #DRIVER AGG/PNG
+       DRIVER GD/PNG
+       EXTENSION "png"
+       IMAGEMODE RGBA
+       TRANSPARENT ON
+       FORMATOPTION          "INTERLACE=OFF"
+   END
  IMAGETYPE png
  DEBUG OFF
  EXTENT -76.512593 -36.948432 -29.585185 7.046013
--
libgit2 0.21.2