1 files changed, 3 insertions, 1 deletions
diff --git a/src/KM_fileio.cpp b/src/KM_fileio.cpp
index 27a5bfa..4ee73c2 100644
--- a/src/KM_fileio.cpp
+++ b/src/KM_fileio.cpp
@@ -719,7 +719,9 @@ Kumu::fsize_t
 Kumu::FileReader::Size() const
 {
 #ifdef KM_WIN32
-  return FileSize(m_Filename.c_str());
+    LARGE_INTEGER size;
+    GetFileSizeEx(m_Handle, &size);
+    return size.QuadPart;
 #else
   fstat_t info;