diff --git a/MagickCore/enhance.h b/MagickCore/enhance.h
index fcebceb..b89bd72 100644
--- a/MagickCore/enhance.h
+++ b/MagickCore/enhance.h
@@ -28,8 +28,8 @@
BrightnessContrastImage(Image *,const double,const double,ExceptionInfo *),
ClutImage(Image *,const Image *,ExceptionInfo *),
ColorDecisionListImage(Image *,const char *,ExceptionInfo *),
- ContrastImage(Image *,const MagickBooleanType),
- ContrastStretchImage(Image *,const double,const double),
+ ContrastImage(Image *,const MagickBooleanType,ExceptionInfo *),
+ ContrastStretchImage(Image *,const double,const double,ExceptionInfo *),
EqualizeImage(Image *image),
GammaImage(Image *,const double,ExceptionInfo *),
HaldClutImage(Image *,const Image *),
@@ -40,7 +40,7 @@
LinearStretchImage(Image *,const double,const double),
ModulateImage(Image *,const char *),
NegateImage(Image *,const MagickBooleanType,ExceptionInfo *),
- NormalizeImage(Image *),
+ NormalizeImage(Image *,ExceptionInfo *),
SigmoidalContrastImage(Image *,const MagickBooleanType,const double,
const double);