diff --git a/include/navparser.hpp b/include/navparser.hpp
index 8b96ab2a..e1e90a3c 100644
--- a/include/navparser.hpp
+++ b/include/navparser.hpp
@@ -25,7 +25,7 @@ bool Prepare();
 void CreateMove();
 void Draw();
 
-size_t FindInVector(size_t id);
+int FindInVector(size_t id);
 
 class inactivityTracker
 {
@@ -303,9 +303,12 @@ struct MAP : public micropather::Graph
             if (inactiveTracker.IsIgnored(
                     std::pair{ area->m_id, i.area->m_id }))
                 continue;
+            int id = FindInVector(i.area->m_id);
+            if (id == -1)
+                return;
             micropather::StateCost cost;
             cost.state =
-                static_cast<void *>(&areas.at(FindInVector(i.area->m_id)));
+                static_cast<void *>(&areas.at(id));
             cost.cost = area->m_center.DistTo(i.area->m_center);
             adjacent->push_back(cost);
         }
diff --git a/src/navparser.cpp b/src/navparser.cpp
index ea4ec0e5..c3e30478 100644
--- a/src/navparser.cpp
+++ b/src/navparser.cpp
@@ -17,9 +17,9 @@ static std::unique_ptr<MAP> TF2MAP;
 // Function to get place in Vector by connection ID
 // Todo: find an alternative for this, maybe a map for storing ptrs to the
 // std::vector?
-size_t FindInVector(size_t id)
+int FindInVector(size_t id)
 {
-    for (size_t i = 0; i < areas.size(); i++)
+    for (int i = 0; i < areas.size(); i++)
     {
         if (areas.at(i).m_id == id)
             return i;