diff --git a/src/app/commands/cmd_export_sprite_sheet.cpp b/src/app/commands/cmd_export_sprite_sheet.cpp
index 3bb3d4ec9..e483b176e 100644
--- a/src/app/commands/cmd_export_sprite_sheet.cpp
+++ b/src/app/commands/cmd_export_sprite_sheet.cpp
@@ -974,7 +974,15 @@ private:
   }
 
   void updateDefaultDataTagnameFormat() {
-    m_tagnameFormatDefault = "{tag}";
+    m_tagnameFormatDefault =
+      get_default_tagname_format_for_sheet();
+
+    if (m_tagnameFormat.empty()) {
+      dataTagnameFormat()->setText(m_tagnameFormatDefault);
+    }
+    else {
+      dataTagnameFormat()->setText(m_tagnameFormat);
+    }
   }
 
   void updateDataFields() {
diff --git a/src/app/filename_formatter.cpp b/src/app/filename_formatter.cpp
index 49ce4c5b5..cd87c8fee 100644
--- a/src/app/filename_formatter.cpp
+++ b/src/app/filename_formatter.cpp
@@ -217,4 +217,9 @@ std::string get_default_filename_format_for_sheet(
   return format;
 }
 
+std::string get_default_tagname_format_for_sheet()
+{
+  return "{tag}";
+}
+
 } // namespace app
diff --git a/src/app/filename_formatter.h b/src/app/filename_formatter.h
index 1ad7074be..0a425f4a6 100644
--- a/src/app/filename_formatter.h
+++ b/src/app/filename_formatter.h
@@ -114,6 +114,8 @@ namespace app {
     const bool hasLayer,
     const bool hasTag);
 
+  std::string get_default_tagname_format_for_sheet();
+
 } // namespace app
 
 #endif