diff --git a/src/tree_data_free.c b/src/tree_data_free.c
index cf70bf7..88c3b34 100644
--- a/src/tree_data_free.c
+++ b/src/tree_data_free.c
@@ -67,13 +67,13 @@
     }
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_meta_single(struct lyd_meta *meta)
 {
     lyd_free_meta(meta, 0);
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_meta_siblings(struct lyd_meta *meta)
 {
     lyd_free_meta(meta, 1);
@@ -125,13 +125,13 @@
     }
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_attr_single(const struct ly_ctx *ctx, struct lyd_attr *attr)
 {
     lyd_free_attr(ctx, attr, 0);
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_attr_siblings(const struct ly_ctx *ctx, struct lyd_attr *attr)
 {
     lyd_free_attr(ctx, attr, 1);
@@ -194,7 +194,7 @@
     free(node);
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_tree(struct lyd_node *node)
 {
     if (!node) {
@@ -227,13 +227,13 @@
     }
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_siblings(struct lyd_node *node)
 {
     lyd_free_(node, 0);
 }
 
-API void
+LIBYANG_API_DEF void
 lyd_free_all(struct lyd_node *node)
 {
     lyd_free_(node, 1);