diff --git a/gb.db.mysql/src/main.c b/gb.db.mysql/src/main.c

index 78dec8d..5438712 100644

--- a/gb.db.mysql/src/main.c

+++ b/gb.db.mysql/src/main.c

@@ -31,6 +31,10 @@

 #include <mysql.h>

+#if defined(bool) && !defined(my_bool)

+#define my_bool bool

+#endif

+

 #include "gb.db.proto.h"

 #include "main.h"