diff --git a/src/set/types.h b/src/set/types.h
index 52744a1..aedb167 100644
--- a/src/set/types.h
+++ b/src/set/types.h
@@ -471,6 +471,7 @@ typedef enum StatementKind_t {
 } StatementKind;
 
 typedef struct Statement_t {
+    StatementKind kind;
     union StatementImplementation {
         FunctionCall call;
         FunctionBoxCall boxCall;