diff --git a/coders/pnm.c b/coders/pnm.c
index b5b555b..f82ba75 100644
--- a/coders/pnm.c
+++ b/coders/pnm.c
@@ -47,6 +47,7 @@
#include "MagickCore/color.h"
#include "MagickCore/color-private.h"
#include "MagickCore/colorspace.h"
+#include "MagickCore/colorspace-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/image.h"
@@ -1547,7 +1548,7 @@
}
if (format != '7')
{
- if (image->colorspace != RGBColorspace)
+ if (IsRGBColorspace(image->colorspace) == MagickFalse)
(void) TransformImageColorspace(image,RGBColorspace);
(void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g\n",
(double) image->columns,(double) image->rows);