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-rw-r--r--src/tree.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/tree.h b/src/tree.h
index 4d30e0106..ef397bbd4 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -57,6 +57,7 @@ int InsertInTree(Tree * tree, void * key, void * data);
int RemoveFromTreeByKey(Tree * tree, void * key);
void RemoveFromTreeByIterator(Tree * tree, TreeIterator * iter);
-int FindInTree(Tree * tree, void * key, TreeIterator * iter /* can be NULL */);
+int FindInTree(Tree * tree, const void * key,
+ TreeIterator * iter /* can be NULL */);
#endif