diff --git a/ALttPRandomizer/Model/SeedSettings.cs b/ALttPRandomizer/Model/SeedSettings.cs
index a6e2444..954bba4 100644
--- a/ALttPRandomizer/Model/SeedSettings.cs
+++ b/ALttPRandomizer/Model/SeedSettings.cs
@@ -5,6 +5,7 @@
 
     public class SeedSettings {
         public const string Omit = "<null>";
+        public const string NoArg = "<noarg>";
 
         public Mode Mode { get; set; } = Mode.Open;
 
@@ -135,7 +136,7 @@
     [CommonValue("shopsanity")]
     public enum ShopShuffle {
         [CommonValue(SeedSettings.Omit)] Vanilla,
-        [CommonValue("true")] Shuffled,
+        [CommonValue(SeedSettings.NoArg)] Shuffled,
     }
 
     public enum DropShuffle {
diff --git a/ALttPRandomizer/Randomizer.cs b/ALttPRandomizer/Randomizer.cs
index ba88699..e45a139 100644
--- a/ALttPRandomizer/Randomizer.cs
+++ b/ALttPRandomizer/Randomizer.cs
@@ -108,8 +108,12 @@
         }
 
         private void AddArgs(ICollection<string> args, KeyValuePair<string, string> setting) {
-            if (setting.Value != null && setting.Value != "<null>") {
-                args.Add(string.Format("--{0}={1}", setting.Key, setting.Value));
+            if (setting.Value != null) {
+                if (setting.Value == SeedSettings.NoArg) {
+                    args.Add(string.Format("--{0}", setting.Key));
+                } else if (setting.Value != SeedSettings.Omit) {
+                    args.Add(string.Format("--{0}={1}", setting.Key, setting.Value));
+                }
             }
         }