diff --git a/openpype/scripts/otio_burnin.py b/openpype/scripts/otio_burnin.py
index 15a62ef38e..3fc1412e62 100644
--- a/openpype/scripts/otio_burnin.py
+++ b/openpype/scripts/otio_burnin.py
@@ -359,7 +359,8 @@ class ModifiedBurnins(ffmpeg_burnins.Burnins):
             if frame_start is None:
                 replacement_final = replacement_size = str(MISSING_KEY_VALUE)
             else:
-                replacement_final = "%{eif:n+" + str(frame_start) + ":d}"
+                replacement_final = "%{eif:n+" + str(frame_start) + ":d:" + \
+                                    str(len(str(frame_end))) + "}"
                 replacement_size = str(frame_end)
 
             final_text = final_text.replace(