diff --git a/metacatalog/__version__.py b/metacatalog/__version__.py
index a68d2bd0..02f8497c 100644
--- a/metacatalog/__version__.py
+++ b/metacatalog/__version__.py
@@ -1 +1 @@
-__version__ = '0.6.3'
+__version__ = '0.6.4'
diff --git a/metacatalog/command_line.py b/metacatalog/command_line.py
index 02d1bebd..85ac18d9 100644
--- a/metacatalog/command_line.py
+++ b/metacatalog/command_line.py
@@ -113,11 +113,11 @@ def main():
     # RUN THE TOOL
     #-------------------
     # print version
-    if hasattr(args, 'version') and args.version:
+    if hasattr(args, 'version'):
         print(VERSION)
     
     # if development mode, do not handle errors
-    elif args.dev:
+    elif hasattr(args, 'dev'):
         args.func(args)
     
     # else, catch all errors and print to file