diff --git a/src/Tools/fcinfo b/src/Tools/fcinfo
index 9fb2834768..4b21fa8e8e 100755
--- a/src/Tools/fcinfo
+++ b/src/Tools/fcinfo
@@ -213,7 +213,7 @@ if __name__ == '__main__':
         print(__doc__)
         sys.exit()
 
-    if not sys.argv[-1].lower().endswith(".fcstd"):
+    if not sys.argv[-1].rsplit(".")[-1].lower().startswith("fcstd"):
         print(__doc__)
         sys.exit()