diff --git a/main/backtrace.c b/main/backtrace.c
index c76f660202..9227b43d15 100644
--- a/main/backtrace.c
+++ b/main/backtrace.c
@@ -72,6 +72,8 @@
 
 #include <pthread.h>
 
+#include <stdbool.h>
+
 /* simple definition of S_OR so we don't have include strings.h */
 #define S_OR(a, b) (a && a[0] != '\0') ? a : b