...

diff --git a/MagickWand/operation.c b/MagickWand/operation.c
index 09e8fbf8eb16e0f9e0fa8c1b93f9277a3050cf52..89d7f045d702e4d0bf2c4bbbdec8a91cf43127dd 100644 (file)
--- a/MagickWand/operation.c
+++ b/MagickWand/operation.c
@@ -1812,7 +1812,7 @@ static MagickBooleanType CLISimpleOperatorImage(MagickCLI *cli_wand,
             method;
 
           method=(AutoThresholdMethod) ParseCommandOption(
-            MagickAutoThresholdOptions,MagickFalse,argv[i+1]);
+            MagickAutoThresholdOptions,MagickFalse,arg1);
           (void) AutoThresholdImage(_image,method,_exception);
           break;
         }