diff --git a/Content.Server/GameObjects/Components/Chemistry/VaporComponent.cs b/Content.Server/GameObjects/Components/Chemistry/VaporComponent.cs
index 6539a5da0d..11dec4f2f3 100644
--- a/Content.Server/GameObjects/Components/Chemistry/VaporComponent.cs
+++ b/Content.Server/GameObjects/Components/Chemistry/VaporComponent.cs
@@ -66,7 +66,7 @@ namespace Content.Server.GameObjects.Components.Chemistry
             _timer += frameTime;
             _reactTimer += frameTime;
 
-            if (_reactTimer >= ReactTime)
+            if (_reactTimer >= ReactTime && Owner.Transform.GridID.IsValid())
             {
                 _reactTimer = 0;
                 var mapGrid = _mapManager.GetGrid(Owner.Transform.GridID);