diff --git a/src/main.rs b/src/main.rs
index 2f0e370..c3f8853 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -418,7 +418,7 @@ fn seconds_to_time(seconds: f64) -> String {
     } else {
         result = String::new();
     }
-    if new_seconds < 10.0 {
+    if new_seconds < 10.0 && seconds >= 0.0 {
         result.push('0');
     }
     result.push_str(&new_seconds.to_string());