diff --git a/exercises/02/vslc/src/parser.y b/exercises/02/vslc/src/parser.y
index 642e19e..059a3ce 100644
--- a/exercises/02/vslc/src/parser.y
+++ b/exercises/02/vslc/src/parser.y
@@ -2,6 +2,7 @@
 #include <vslc.h>
 %}
 
+%define api.value.type {node_t}
 %token FUNC PRINT RETURN CONTINUE IF THEN ELSE WHILE DO OPENBLOCK CLOSEBLOCK
 %token VAR NUMBER IDENTIFIER STRING