diff --git a/src/tools/vppapigen/vppapigen_c.py b/src/tools/vppapigen/vppapigen_c.py
index 6c4ca35..b34d063 100644
--- a/src/tools/vppapigen/vppapigen_c.py
+++ b/src/tools/vppapigen/vppapigen_c.py
@@ -13,6 +13,7 @@
  * Automatically generated: please edit the input file NOT this file!
  */
 
+#include <stdbool.h>
 #if defined(vl_msg_id)||defined(vl_union_id) \\
     || defined(vl_printfun) ||defined(vl_endianfun) \\
     || defined(vl_api_version)||defined(vl_typedefs) \\