Renamed mattecolor to alpha-color.
diff --git a/MagickWand/animate.c b/MagickWand/animate.c
index db8b9c8..a1833a7 100644
--- a/MagickWand/animate.c
+++ b/MagickWand/animate.c
@@ -209,8 +209,8 @@
   (void) printf(
     "resources as command line options:  -background, -bordercolor,\n");
   (void) printf(
-    "-borderwidth, -font, -foreground, -iconGeometry, -iconic, -name,\n");
-  (void) printf("-mattecolor, -shared-memory, or -title.\n");
+    "-alpha-color, -borderwidth, -font, -foreground, -iconGeometry,\n");
+  (void) printf("-iconic, -name, -shared-memory, or -title.\n");
   (void) printf(
     "\nBy default, the image format of 'file' is determined by its magic\n");
   (void) printf(
@@ -467,6 +467,16 @@
                 argv[i]);
             break;
           }
+        if (LocaleCompare("alpha-color",option+1) == 0)
+          {
+            if (*option == '+')
+              break;
+            i++;
+            if (i == (ssize_t) argc)
+              ThrowAnimateException(OptionError,"MissingArgument",option);
+            resource_info.alpha_color=argv[i];
+            break;
+          }
         if (LocaleCompare("authenticate",option+1) == 0)
           {
             if (*option == '+')
@@ -1052,16 +1062,6 @@
           }
         if (LocaleCompare("matte",option+1) == 0)
           break;
-        if (LocaleCompare("mattecolor",option+1) == 0)
-          {
-            if (*option == '+')
-              break;
-            i++;
-            if (i == (ssize_t) argc)
-              ThrowAnimateException(OptionError,"MissingArgument",option);
-            resource_info.matte_color=argv[i];
-            break;
-          }
         if (LocaleCompare("monitor",option+1) == 0)
           break;
         if (LocaleCompare("monochrome",option+1) == 0)