diff --git a/src/instance/graph/LineStop.h b/src/instance/graph/LineStop.h
index 413a4555c499d8d84d1ce326ed5632e3bf369394..afcd9800016409d0f7b1c5bb3569f39c5f776d5e 100644
--- a/src/instance/graph/LineStop.h
+++ b/src/instance/graph/LineStop.h
@@ -43,7 +43,7 @@ public:
      */
     [[nodiscard]] int getPrecedingNodeIndex() const
     {
-        if(_stopIndex - 1 > 0)
+        if(_stopIndex - 1 >= 0)
             return _lineRef.getNode(_stopIndex - 1);
         else
             return -1;