diff --git a/libkc3/bool.c b/libkc3/bool.c
index c2eb791..fb65a09 100644
--- a/libkc3/bool.c
+++ b/libkc3/bool.c
@@ -70,6 +70,7 @@ bool * bool_init_cast (bool *b, const s_sym * const *type,
case TAG_STRUCT:
case TAG_STRUCT_TYPE:
case TAG_SYM:
+ case TAG_TIME:
case TAG_TUPLE:
case TAG_UNQUOTE:
case TAG_VAR: *b = true; return b;