diff --git a/BizHawk.Client.EmuHawk/MainForm.cs b/BizHawk.Client.EmuHawk/MainForm.cs
index 28f0311d31..6693e69650 100644
--- a/BizHawk.Client.EmuHawk/MainForm.cs
+++ b/BizHawk.Client.EmuHawk/MainForm.cs
@@ -3594,25 +3594,18 @@ namespace BizHawk.Client.EmuHawk
 
                 if (args.Deterministic == null)
                 {
-                    // force deterministic in this case
-                    // this is usually null for most cores
-                    // previously this was getting set to false if a movie was not queued for recording - surely that can't be good..
-                    deterministic = true;
-                }
+					// movies should require deterministic emulation in ALL cases
+					// if the core is managing its own DE through SyncSettings a 'deterministic' bool can be passed into the core's constructor
+					// it is then up to the core itself to override its own local DeterministicEmulation setting
+					// if a movie is *not* queued then make this false (this is needed for mGBA logic and is how things were working before I changed them -Asni)
+					deterministic = Global.MovieSession.QueuedMovie != null;
+				}
                 else
                 {
                     // a value was actually supplied somehow - use this
                     deterministic = args.Deterministic.Value;
                 }
 
-                if (Global.MovieSession.QueuedMovie != null)
-                {
-                    // movies should require deterministic emulation in ALL cases
-                    // if the core is managing its own DE through SyncSettings a 'deterministic' bool should be passed into the core's constructor
-                    // it is then up to the core itself to override its own local DeterministicEmulation setting
-                    deterministic = true;
-                }
-
 				if (!GlobalWin.Tools.AskSave())
 				{
 					return false;