diff --git a/src/app/file/file.cpp b/src/app/file/file.cpp
index c201ddedd..a0566e672 100644
--- a/src/app/file/file.cpp
+++ b/src/app/file/file.cpp
@@ -676,7 +676,8 @@ FileOp* FileOp::createSaveDocumentOperation(const Context* context,
         .outerTagName(outerTag ? outerTag->name(): "")
         .frame(outputFrame)
         .tagFrame(innerTag ? frame - innerTag->fromFrame():
-                             outputFrame);
+                             outputFrame)
+        .duration(spr->frameDuration(frame));
 
       fop->m_seq.filename_list.push_back(
         filename_formatter(fn_format, fnInfo));
diff --git a/src/app/filename_formatter.cpp b/src/app/filename_formatter.cpp
index f2a980228..49ce4c5b5 100644
--- a/src/app/filename_formatter.cpp
+++ b/src/app/filename_formatter.cpp
@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2022  Igara Studio S.A.
 // Copyright (C) 2001-2017  David Capello
 //
 // This program is distributed under the terms of
@@ -112,12 +113,12 @@ std::string filename_formatter(
   base::replace_string(output, "{layer}", info.layerName());
   base::replace_string(output, "{group}", info.groupName());
   base::replace_string(output, "{slice}", info.sliceName());
-  base::replace_string(output, "{duration}", std::to_string(info.duration()));
 
   if (replaceFrame) {
     base::replace_string(output, "{tag}", info.innerTagName());
     base::replace_string(output, "{innertag}", info.innerTagName());
     base::replace_string(output, "{outertag}", info.outerTagName());
+    base::replace_string(output, "{duration}", std::to_string(info.duration()));
     replace_frame("{frame", info.frame(), output);
     replace_frame("{tagframe", info.tagFrame(), output);
   }