diff --git a/coders/aai.c b/coders/aai.c
index e0a01e7..214b175 100644
--- a/coders/aai.c
+++ b/coders/aai.c
@@ -44,6 +44,7 @@
#include "MagickCore/blob-private.h"
#include "MagickCore/cache.h"
#include "MagickCore/colorspace.h"
+#include "MagickCore/colorspace-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/image.h"
@@ -357,7 +358,7 @@
/*
Write AAI header.
*/
- if (image->colorspace != RGBColorspace)
+ if (IsRGBColorspace(image->colorspace) == MagickFalse)
(void) TransformImageColorspace(image,RGBColorspace);
(void) WriteBlobLSBLong(image,(unsigned int) image->columns);
(void) WriteBlobLSBLong(image,(unsigned int) image->rows);