diff --git a/src/lib/bit/int96.h b/src/lib/bit/int96.h
index f615e2fe9b62b735b2058bdad8100e2a19297fa7..cdde0e99564d5e4fa0b4cd4734a787df9c5ba199 100644
--- a/src/lib/bit/int96.h
+++ b/src/lib/bit/int96.h
@@ -33,6 +33,7 @@
 
 #include <inttypes.h>
 #include <assert.h>
+#include <stdbool.h>
 
 /**
  * 96-bit signed integer.