diff --git a/coders/sun.c b/coders/sun.c
index 8466da5..268e444 100644
--- a/coders/sun.c
+++ b/coders/sun.c
@@ -762,7 +762,7 @@
       Initialize SUN raster file header.
     */
     if (IsRGBColorspace(image->colorspace) == MagickFalse)
-      (void) TransformImageColorspace(image,RGBColorspace,exception);
+      (void) TransformImageColorspace(image,sRGBColorspace,exception);
     sun_info.magic=0x59a66a95;
     if ((image->columns != (unsigned int) image->columns) ||
         (image->rows != (unsigned int) image->rows))