diff --git a/files/mvregex b/files/mvregex
index a5f010d..0f65882 100755
--- a/files/mvregex
+++ b/files/mvregex
@@ -51,7 +51,7 @@ do  [[ "${!i}" = "-h" ]] && helpexit
             continue
         }
     [[ "${!i}" = "-a" ]] && {
-            SRC='[^0-9a-zA-Z.-_]'
+            SRC='[^0-9a-zA-Z._-]'
             continue
         }
     [[ -z "$SRC" ]] && {