diff --git a/src/app/file/file.cpp b/src/app/file/file.cpp
index f0bbd7a2f..bb4444e22 100644
--- a/src/app/file/file.cpp
+++ b/src/app/file/file.cpp
@@ -1004,7 +1004,9 @@ void FileOp::postLoad()
 
 void FileOp::setLoadedFormatOptions(const FormatOptionsPtr& opts)
 {
-  ASSERT(!m_formatOptions);
+  // This assert can fail when we load a sequence of files.
+  // TODO what we should do, keep the first or the latest format options?
+  //ASSERT(!m_formatOptions);
   m_formatOptions = opts;
 }