diff --git a/source/lib/ldb/include/ldb.h b/source/lib/ldb/include/ldb.h
index e2ff8c6f98c..2e54920c17e 100644
--- a/source/lib/ldb/include/ldb.h
+++ b/source/lib/ldb/include/ldb.h
@@ -705,7 +705,7 @@ struct ldb_handle {
 struct ldb_search {
 	struct ldb_dn *base;
 	enum ldb_scope scope;
-	const struct ldb_parse_tree *tree;
+	struct ldb_parse_tree *tree;
 	const char * const *attrs;
 	struct ldb_result *res;
 };