1 files changed, 1 insertions, 1 deletions

diff --git a/include/plist/Array.h b/include/plist/Array.h
index 69ff26f..745b750 100644
--- a/include/plist/Array.h
+++ b/include/plist/Array.h
@@ -44,7 +44,7 @@ public :
     void Insert(Node* node, unsigned int pos);
     void Remove(Node* node);
     void Remove(unsigned int pos);
-    unsigned int GetNodeIndex(Node* node);
+    unsigned int GetNodeIndex(Node* node) const;
 
 private :
     std::vector<Node*> _array;