diff --git a/src/pattern.c b/src/pattern.c
index dee0403..8526611 100644
--- a/src/pattern.c
+++ b/src/pattern.c
@@ -22,6 +22,7 @@ liblex_result _pattern_node_create_clear(pattern_node** into){
 liblex_result _pattern_node_create_value(pattern_node** into, int id, char value, pattern_node* next){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_VALUE;
     (*into)->id = id;
     (*into)->data_u.value_s.value = value;
     (*into)->data_u.value_s.next = next;
@@ -32,6 +33,7 @@ liblex_result _pattern_node_create_value(pattern_node** into, int id, char value
 liblex_result _pattern_node_create_range(pattern_node** into, int id, char from, char to, pattern_node* next){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_RANGE;
     (*into)->id = id;
     (*into)->data_u.range_s.from = from;
     (*into)->data_u.range_s.to = to;
@@ -43,6 +45,7 @@ liblex_result _pattern_node_create_range(pattern_node** into, int id, char from,
 liblex_result _pattern_node_create_any(pattern_node** into, int id, pattern_node* next){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_ANY;
     (*into)->id = id;
     (*into)->data_u.any_s.next = next;
   }
@@ -52,6 +55,7 @@ liblex_result _pattern_node_create_any(pattern_node** into, int id, pattern_node
 liblex_result _pattern_node_create_connect(pattern_node** into, int id, pattern_node* next){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_CONNECT;
     (*into)->id = id;
     (*into)->data_u.connect_s.next = next;
   }
@@ -61,6 +65,7 @@ liblex_result _pattern_node_create_connect(pattern_node** into, int id, pattern_
 liblex_result _pattern_node_create_fork(pattern_node** into, int id, pattern_node* left, pattern_node* right){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_FORK;
     (*into)->id = id;
     (*into)->data_u.fork_s.left = left;
     (*into)->data_u.fork_s.right = right;
@@ -71,6 +76,7 @@ liblex_result _pattern_node_create_fork(pattern_node** into, int id, pattern_nod
 liblex_result _pattern_node_create_end(pattern_node** into, int id, int pattern_id){
   liblex_result result = _pattern_node_create_clear(into);
   if(result == LIBLEX_SUCCESS){
+    (*into)->type = PNODE_END;
     (*into)->id = id;
     (*into)->data_u.end_s.pattern_id = pattern_id;
   }