diff --git a/uuid.zig b/uuid.zig
index 09c6af0..0aac72a 100644
--- a/uuid.zig
+++ b/uuid.zig
@@ -22,12 +22,12 @@ pub const UUID = struct {
         return uuid;
     }
 
-    fn to_string(self: UUID,slice: []u8) void {
-        var string:[36]u8 = format_uuid(self);
+    pub fn to_string(self: UUID, slice: []u8) void {
+        var string: [36]u8 = format_uuid(self);
         std.mem.copy(u8, slice, &string);
     }
 
-    fn format_uuid(self: UUID) [36]u8 {
+    pub fn format_uuid(self: UUID) [36]u8 {
         var buf: [36]u8 = undefined;
         buf[8] = '-';
         buf[13] = '-';
@@ -161,8 +161,8 @@ test "check to_string works" {
     uuid1.to_string(&string1);
     uuid1.to_string(&string2);
 
-    std.debug.print("\nUUID {s} \n", .{uuid1});
-    std.debug.print("\nFirst  call to_string {s} \n", .{string1});
-    std.debug.print("Second call to_string {s} \n", .{string2});
+    std.log.debug("\nUUID {s} \n", .{uuid1});
+    std.log.debug("\nFirst  call to_string {s} \n", .{string1});
+    std.log.debug("Second call to_string {s} \n", .{string2});
     try testing.expectEqual(string1, string2);
 }