diff --git a/.gitignore b/.gitignore
index 7763270..bcd9a19 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 docs/generated
+example*
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/pycdhit/__init__.py b/pycdhit/__init__.py
index 189dc5d..fd3b224 100644
--- a/pycdhit/__init__.py
+++ b/pycdhit/__init__.py
@@ -4,7 +4,7 @@
 from ._commands import *  # noqa: F403
 from ._io import *  # noqa: F403
 
-VERSION = "1.1.3"
+VERSION = "1.1.4"
 
 __all__ = [  # noqa: F405
     "CommandBase",
diff --git a/pycdhit/_class.py b/pycdhit/_class.py
index 1982c60..bddf302 100644
--- a/pycdhit/_class.py
+++ b/pycdhit/_class.py
@@ -69,7 +69,7 @@ class CDHIT(CommandBase):
 
     Args:
         prog: Name of the program.
-            {'cd-hit', 'cd-hit-2d', 'cd-hit-est', 'cd-hit-est-2d'},
+            {'cd-hit', 'cd-hit-2d', 'cd-hit-est', 'cd-hit-est-2d', 'cd-hit-454'},
             default 'cd-hit'.
         path: Path of the program. Default `None`.