diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 88db7a2f7d..9004508f15 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -335,7 +335,7 @@ public class LExecutor{
         /** Checks is a unit is valid for logic AI control, and returns the controller. */
         @Nullable
         public static LogicAI checkLogicAI(LExecutor exec, Object unitObj){
-            if(unitObj instanceof Unit unit && exec.obj(varUnit) == unit && unit.team == exec.team && !unit.isPlayer() && !(unit.controller() instanceof FormationAI)){
+            if(unitObj instanceof Unit unit && unit.isValid() && exec.obj(varUnit) == unit && unit.team == exec.team && !unit.isPlayer() && !(unit.controller() instanceof FormationAI)){
                 if(unit.controller() instanceof LogicAI la){
                     la.controller = exec.building(varThis);
                     return la;