diff --git a/Arma3TacMapLibrary/Maps/MapExporter.cs b/Arma3TacMapLibrary/Maps/MapExporter.cs
index 9152d1f..6597072 100644
--- a/Arma3TacMapLibrary/Maps/MapExporter.cs
+++ b/Arma3TacMapLibrary/Maps/MapExporter.cs
@@ -162,7 +162,7 @@ private static List<object> GetMilAsMetis(int id, MarkerData data)
         {
             return new List<object>()
                     {
-                        id,
+                        id.ToString(),
                         data.pos[1],
                         data.pos[0],
                         ToIdentify(data.symbol[3]),
@@ -187,7 +187,7 @@ private static List<object> GetLine(int id, MarkerData data)
                 points.Add(y);
             }
             return new List<object>() {
-                        id,
+                        id.ToString(),
                         points,
                         Get(data.config, "color", "ColorBlack")};
         }
@@ -197,7 +197,7 @@ private static List<object> GetBasic(int id, MarkerData data)
             var dir = Get(data.config, "dir", "");
 
             return new List<object>() {
-                        id,
+                        id.ToString(),
                         data.pos[1],
                         data.pos[0],
                         data.symbol,