diff --git a/include/r3.h b/include/r3.h
index d7326a2..b2562c9 100644
--- a/include/r3.h
+++ b/include/r3.h
@@ -188,6 +188,7 @@ json_object * r3_route_to_json_object(const route * r);
 const char * r3_node_to_json_string_ext(const node * n, int options);
 const char * r3_node_to_json_pretty_string(const node * n);
 const char * r3_node_to_json_string(const node * n);
+#endif
 
 #ifdef __cplusplus
 }