diff --git a/scripts/map/MapParser.cs b/scripts/map/MapParser.cs
index 1cd5616..f5ac8fc 100644
--- a/scripts/map/MapParser.cs
+++ b/scripts/map/MapParser.cs
@@ -40,7 +40,7 @@ await Task.Run(() =>
             var maps = new ConcurrentBag<Map>();
 
             Callable.From(() => Instance.EmitSignal(SignalName.MapsImportStarted)).CallDeferred();
-            Parallel.ForEach(files, new ParallelOptions { MaxDegreeOfParallelism = System.Environment.ProcessorCount / 4 }, file =>
+            Parallel.ForEach(files, new ParallelOptions { MaxDegreeOfParallelism = Math.Max(System.Environment.ProcessorCount / 4, 1) }, file =>
             {
                 try
                 {