diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 300b5e721b..79489fbe51 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -1883,13 +1883,14 @@ public class LExecutor{
         public static final int maxMarkers = 20000;
 
         public String type = "shape";
-        public int id, x, y;
+        public int id, x, y, replace;
 
-        public MakeMarkerI(String type, int id, int x, int y){
+        public MakeMarkerI(String type, int id, int x, int y, int replace){
             this.type = type;
             this.id = id;
             this.x = x;
             this.y = y;
+            this.replace = replace;
         }
 
         public MakeMarkerI(){
@@ -1900,9 +1901,12 @@ public class LExecutor{
             var cons = MapObjectives.markerNameToType.get(type);
 
             if(cons != null && state.markers.size < maxMarkers){
-                var marker = cons.get();
-                marker.control(LMarkerControl.pos, exec.num(x), exec.num(y), 0);
-                state.markers.put(exec.numi(id), marker);
+                int mid = exec.numi(id);
+                if(exec.bool(replace) || !state.markers.containsKey(mid)){
+                    var marker = cons.get();
+                    marker.control(LMarkerControl.pos, exec.num(x), exec.num(y), 0);
+                    state.markers.put(mid, marker);
+                }
             }
         }
     }
diff --git a/core/src/mindustry/logic/LStatements.java b/core/src/mindustry/logic/LStatements.java
index cb167809bc..f839a14e9e 100644
--- a/core/src/mindustry/logic/LStatements.java
+++ b/core/src/mindustry/logic/LStatements.java
@@ -1982,7 +1982,7 @@ public class LStatements{
 
     @RegisterStatement("makemarker")
     public static class MakeMarkerStatement extends LStatement{
-        public String id = "0", type = "shape", x = "0", y = "0";
+        public String id = "0", type = "shape", x = "0", y = "0", replace = "true";
 
         @Override
         public void build(Table table){
@@ -2004,6 +2004,10 @@ public class LStatements{
             fieldst(table, "x", x, v -> x = v);
 
             fieldst(table, "y", y, v -> y = v);
+
+            row(table);
+
+            fieldst(table, "replace", replace, v -> replace = v);
         }
 
         @Override
@@ -2013,7 +2017,7 @@ public class LStatements{
 
         @Override
         public LInstruction build(LAssembler builder){
-            return new MakeMarkerI(type, builder.var(id), builder.var(x), builder.var(y));
+            return new MakeMarkerI(type, builder.var(id), builder.var(x), builder.var(y), builder.var(replace));
         }
 
         @Override