1 files changed, 1 insertions, 0 deletions

diff --git a/py/vstr.c b/py/vstr.c
index c518fa704..032acc61b 100644
--- a/py/vstr.c
+++ b/py/vstr.c
@@ -1,3 +1,4 @@
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>