diff --git a/Source/Editor/Viewport/EditorViewport.cs b/Source/Editor/Viewport/EditorViewport.cs
index 00da69343..68bd5c14d 100644
--- a/Source/Editor/Viewport/EditorViewport.cs
+++ b/Source/Editor/Viewport/EditorViewport.cs
@@ -986,6 +986,13 @@ namespace FlaxEditor.Viewport
                     OnMiddleMouseButtonUp();
             }
 
+            if (_isOrtho)
+            {
+                var scroll = FlaxEngine.Input.MouseScrollDelta;
+                if (scroll != 0)
+                    _orthoSize -= scroll * 0.2f * _orthoSize;
+            }
+            
             // Get clamped delta time (more stable during lags)
             var dt = Math.Min(Time.UnscaledDeltaTime, 1.0f);