diff --git a/klippy/extras/virtual_sdcard.py b/klippy/extras/virtual_sdcard.py
index 699add31..8d192c54 100644
--- a/klippy/extras/virtual_sdcard.py
+++ b/klippy/extras/virtual_sdcard.py
@@ -147,8 +147,10 @@ class VirtualSD:
     def _load_file(self, gcmd, filename, check_subdirs=False):
         files = self.get_file_list(check_subdirs)
         files_by_lower = { fname.lower(): fname for fname, fsize in files }
+        fname = filename
         try:
-            fname = files_by_lower[filename.lower()]
+            if fname not in files:
+                fname = files_by_lower[fname.lower()]
             fname = os.path.join(self.sdcard_dirname, fname)
             f = open(fname, 'rb')
             f.seek(0, os.SEEK_END)