diff --git a/src/tree_schema.c b/src/tree_schema.c
index 24e38b3..61ca70e 100644
--- a/src/tree_schema.c
+++ b/src/tree_schema.c
@@ -216,8 +216,10 @@
     return NULL;
 }
 
+
+
 API char *
-lysc_path(struct lysc_node *node, LY_PATH_TYPE pathtype)
+lysc_path(struct lysc_node *node, LY_PATH_TYPE pathtype, char *buffer, size_t buflen)
 {
     struct lysc_node *iter;
     char *path = NULL;
@@ -226,7 +228,7 @@
     switch (pathtype) {
     case LY_PATH_LOG:
         for (iter = node; iter && len >= 0; iter = iter->parent) {
-            char *s = path;
+            char *s = buffer ? strdup(buffer) : path;
             char *id;
 
             switch (iter->nodetype) {
@@ -246,13 +248,26 @@
 
             if (!iter->parent || iter->parent->module != iter->module) {
                 /* print prefix */
-                len = asprintf(&path, "/%s:%s%s", iter->module->name, id, s ? s : "");
+                if (buffer) {
+                    len = snprintf(buffer, buflen, "/%s:%s%s", iter->module->name, id, s ? s : "");
+                } else {
+                    len = asprintf(&path, "/%s:%s%s", iter->module->name, id, s ? s : "");
+                }
             } else {
                 /* prefix is the same as in parent */
-                len = asprintf(&path, "/%s%s", id, s ? s : "");
+                if (buffer) {
+                    len = snprintf(buffer, buflen, "/%s%s", id, s ? s : "");
+                } else {
+                    len = asprintf(&path, "/%s%s", id, s ? s : "");
+                }
             }
             free(s);
             free(id);
+
+            if (buffer && buflen <= (size_t)len) {
+                /* not enough space in buffer */
+                break;
+            }
         }
 
         if (len < 0) {
@@ -265,7 +280,11 @@
         break;
     }
 
-    return path;
+    if (buffer) {
+        return buffer;
+    } else {
+        return path;
+    }
 }
 
 API int