diff --git a/src/EcsCollectionsExtensions.cs b/src/EcsCollectionsExtensions.cs
index cae9511..efbce96 100644
--- a/src/EcsCollectionsExtensions.cs
+++ b/src/EcsCollectionsExtensions.cs
@@ -1,4 +1,8 @@
-namespace DCFApixels.DragonECS
+#if DISABLE_DEBUG
+#undef DEBUG
+#endif
+
+namespace DCFApixels.DragonECS
 {
     public static class EcsCollectionsExtensions
     {
diff --git a/src/Exceptions.cs b/src/Exceptions.cs
index 54cca04..501091f 100644
--- a/src/Exceptions.cs
+++ b/src/Exceptions.cs
@@ -1,4 +1,7 @@
-using System;
+#if DISABLE_DEBUG
+#undef DEBUG
+#endif
+using System;
 
 namespace DCFApixels.DragonECS
 {
diff --git a/src/ThreadRunner.cs b/src/ThreadRunner.cs
index e49fd5f..dac7b3f 100644
--- a/src/ThreadRunner.cs
+++ b/src/ThreadRunner.cs
@@ -1,3 +1,6 @@
+#if DISABLE_DEBUG
+#undef DEBUG
+#endif
 using DCFApixels.DragonECS.ClassicThreadsInternal;
 using System;
 using System.Collections.Concurrent;
@@ -69,7 +72,7 @@ namespace DCFApixels.DragonECS
         {
             if (_isRunning)
             {
-#if (DEBUG && !DISABLE_DEBUG) || ENABLE_DRAGONECS_ASSERT_CHEKS
+#if DEBUG || ENABLE_DRAGONECS_ASSERT_CHEKS
                 if (_threads.Any(o => o.thread == Thread.CurrentThread))
                 {
                     Throw.DoubleParallelIteration();