Moved aliases to coder header file.
diff --git a/coders/matte.h b/coders/matte.h
index e7685b4..66ef2c2 100644
--- a/coders/matte.h
+++ b/coders/matte.h
@@ -18,6 +18,8 @@
 
 #define MagickMATTEHeaders
 
+#define MagickMATTEAliases
+
 #if defined(__cplusplus) || defined(c_plusplus)
 extern "C" {
 #endif