diff --git a/CHANGELIST.md b/CHANGELIST.md
index 80fc8c4a..665acbac 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -58,6 +58,7 @@
 - Fix speed dropdown with Redumper
 - Update redumper to build 585
 - Further fix speed dropdown with Redumper
+- Use null for 0 speed internally
 
 ### 3.3.0 (2025-01-03)
 
diff --git a/MPF.ExecutionContexts/Redumper/ExecutionContext.cs b/MPF.ExecutionContexts/Redumper/ExecutionContext.cs
index f8fe1b20..f2023c1d 100644
--- a/MPF.ExecutionContexts/Redumper/ExecutionContext.cs
+++ b/MPF.ExecutionContexts/Redumper/ExecutionContext.cs
@@ -40,7 +40,7 @@ namespace MPF.ExecutionContexts.Redumper
                 else
                 {
                     this[FlagStrings.Speed] = false;
-                    (_inputs[FlagStrings.Speed] as Int32Input)?.SetValue(0);
+                    (_inputs[FlagStrings.Speed] as Int32Input)?.SetValue(null);
                 }
             }
         }
@@ -302,7 +302,7 @@ namespace MPF.ExecutionContexts.Redumper
             else
             {
                 this[FlagStrings.Speed] = false;
-                (_inputs[FlagStrings.Speed] as Int32Input)?.SetValue(0);
+                (_inputs[FlagStrings.Speed] as Int32Input)?.SetValue(null);
             }
 
             // Set user-defined options