diff --git a/magick/coder.h b/magick/coder.h
index 71cf008..75792bb 100644
--- a/magick/coder.h
+++ b/magick/coder.h
@@ -49,11 +49,11 @@
   **GetCoderInfoList(const char *,unsigned long *,ExceptionInfo *);
 
 extern MagickExport MagickBooleanType
-  InstantiateCoderComponent(void),
+  CoderComponentGenesis(void),
   ListCoderInfo(FILE *,ExceptionInfo *);
 
 MagickExport void
-  DestroyCoderComponent(void);
+  CoderComponentTerminus(void);
 
 #if defined(__cplusplus) || defined(c_plusplus)
 }