diff --git a/lib/isc/include/isc/rbtgen.h b/lib/isc/include/isc/rbtgen.h
index 09055c9aef..98500fd9de 100644
--- a/lib/isc/include/isc/rbtgen.h
+++ b/lib/isc/include/isc/rbtgen.h
@@ -6,6 +6,6 @@
 
 typedef struct RBT_NODE *RBT_NODE_T;
 
-RBT_NODE_T RBT_SEARCH(RBT_NODE_T, RBT_KEY_T);
 void RBT_INSERT(RBT_NODE_T, RBT_NODE_T *);
+RBT_NODE_T RBT_SEARCH(RBT_NODE_T, RBT_KEY_T);
 void RBT_PRINT(RBT_NODE_T);