diff --git a/coders/wbmp.c b/coders/wbmp.c
index 2f77d2f..89f4370 100644
--- a/coders/wbmp.c
+++ b/coders/wbmp.c
@@ -378,7 +378,7 @@
   if (status == MagickFalse)
     return(status);
   if (IsRGBColorspace(image->colorspace) == MagickFalse)
-    (void) TransformImageColorspace(image,RGBColorspace);
+    (void) TransformImageColorspace(image,RGBColorspace,exception);
   /*
     Convert image to a bi-level image.
   */