diff --git a/Exscript/protocols/drivers/driver.py b/Exscript/protocols/drivers/driver.py
index 2005d9f4..66104681 100644
--- a/Exscript/protocols/drivers/driver.py
+++ b/Exscript/protocols/drivers/driver.py
@@ -49,7 +49,7 @@
                          + _any_path + r'?'
                          + r'[: ]?'
                          + _any_path + r'?'
-                         + r'(?:\(' + _filename + '\))?'
+                         + r'(?:\(' + _filename + r'\))?'
                          + r'[\]\-]?'
                          + r'[#>%\$\]] ?'
                          + _unprintable + r'*'