diff --git a/src/Tools/fcinfo b/src/Tools/fcinfo
index 4b21fa8e8e..bee7678e75 100755
--- a/src/Tools/fcinfo
+++ b/src/Tools/fcinfo
@@ -213,7 +213,8 @@ if __name__ == '__main__':
         print(__doc__)
         sys.exit()
 
-    if not sys.argv[-1].rsplit(".")[-1].lower().startswith("fcstd"):
+    ext = sys.argv[-1].rsplit(".")[-1].lower()
+    if not ext.startswith("fcstd") and not ext.startswith("fcbak"):
         print(__doc__)
         sys.exit()