1 files changed, 1 insertions, 0 deletions
diff --git a/tcctok.h b/tcctok.h
index ace81dc..3de3ae2 100644
--- a/tcctok.h
+++ b/tcctok.h
@@ -157,6 +157,7 @@
      DEF(TOK_lib, "lib")
      DEF(TOK_push_macro, "push_macro")
      DEF(TOK_pop_macro, "pop_macro")
+     DEF(TOK_once, "once")
 
 /* builtin functions or variables */
 #ifndef TCC_ARM_EABI