diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 62a84d85ab..56699d266f 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -97,6 +97,7 @@ public class LExecutor{
 
     /** Loads with a specified assembler. Resets all variables. */
     public void load(LAssembler builder){
+        nameMap = null;
         vars = new Var[builder.vars.size];
         instructions = builder.instructions;
         iptIndex = -1;