https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=32932

diff --git a/MagickWand/operation.c b/MagickWand/operation.c
index bd3c6c6961566cd197cce6e1260363f746cad953..fbb8dc0bc0ef856146e5cb71288ad19139f17d6c 100644 (file)
--- a/MagickWand/operation.c
+++ b/MagickWand/operation.c
@@ -1329,7 +1329,7 @@ WandPrivate void CLISettingOptionInfo(MagickCLI *cli_wand,
         }
       if (LocaleCompare("seed",option+1) == 0)
         {
-          if (IsGeometry(arg1) == MagickFalse)
+          if (IfSetOption && (IsGeometry(arg1) == MagickFalse))
             CLIWandExceptArgBreak(OptionError,"InvalidArgument",option,arg1);
           SetRandomSecretKey(
                IfSetOption ? (unsigned long) StringToUnsignedLong(arg1)