diff --git a/src/main.zig b/src/main.zig
index cb3f837..d7e2c9d 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -140,7 +140,7 @@ pub const Sign = enum(u1) {
     negative,
 };
 
-pub const HoursMinutes = struct {
+const HoursMinutes = struct {
     hours: u4,
     minutes: ?u6,
 };