diff --git a/src/image.zig b/src/image.zig
index c43f88e..e0fea67 100644
--- a/src/image.zig
+++ b/src/image.zig
@@ -79,7 +79,7 @@ pub fn temporaryName(allocator: *std.mem.Allocator) ![]u8 {
     var nam = try allocator.alloc(u8, template.len);
     std.mem.copy(u8, nam, template);
 
-    const seed = @bitCast(u64, std.time.timestamp());
+    const seed = @truncate(u64, @bitCast(u128, std.time.nanoTimestamp()));
     var r = std.rand.DefaultPrng.init(seed);
 
     var fill = nam[template_start.len..nam.len];