diff --git a/src/sIArena/terrain/Terrain.py b/src/sIArena/terrain/Terrain.py
index d8a8cf2..460908a 100644
--- a/src/sIArena/terrain/Terrain.py
+++ b/src/sIArena/terrain/Terrain.py
@@ -149,6 +149,9 @@ def is_full_path(self, path: Path) -> bool:
 
     def is_valid_path(self, path: Path) -> bool:
         """Returns True if the given path is valid"""
+        if path is None or len(path) == 0:
+            return False
+
         for i in range(len(path) - 1):
             if path[i + 1] not in self.get_neighbors(path[i]):
                 return False