diff --git a/GstToolkit.cpp b/GstToolkit.cpp
index 902fe3a..24be3ea 100644
--- a/GstToolkit.cpp
+++ b/GstToolkit.cpp
@@ -39,7 +39,7 @@ string GstToolkit::time_to_string(guint64 t, time_string_mode m)
             count++;
         }
         if (count < 2 )
-            oss << '.'<< setw(1) << setfill('0') << (ms % 1000) / 10;
+            oss << '.'<< setw(2) << setfill('0') << (ms % 1000) / 10;
     }
     else {
         // TIME_STRING_FIXED : fixed length string (11 chars) HH:mm:ss.ii"