diff --git a/coders/art.c b/coders/art.c
index c102f02..fbb8585 100644
--- a/coders/art.c
+++ b/coders/art.c
@@ -323,7 +323,7 @@
   (void) WriteBlobLSBShort(image,0);
   (void) WriteBlobLSBShort(image,(unsigned short) image->rows);
   if (IsRGBColorspace(image->colorspace) == MagickFalse)
-    (void) TransformImageColorspace(image,RGBColorspace);
+    (void) TransformImageColorspace(image,RGBColorspace,exception);
   length=(image->columns+7)/8;
   pixels=(unsigned char *) AcquireQuantumMemory(length,sizeof(*pixels));
   if (pixels == (unsigned char *) NULL)