diff --git a/lib/tfw/components/terminal_commands.py b/lib/tfw/components/terminal_commands.py
index b07f652..8b252f3 100644
--- a/lib/tfw/components/terminal_commands.py
+++ b/lib/tfw/components/terminal_commands.py
@@ -9,11 +9,14 @@ LOG = logging.getLogger(__name__)
 class TerminalCommands(ABC):
     def __init__(self, bashrc=None):
         self._command_method_regex = r'^command_(.+)$'
-        self.command_implemetations = {self._parse_command_name(fun): getattr(self, fun) for fun in dir(self)
-                                       if callable(getattr(self, fun)) and self._is_command_implementation(fun)}
+        self.command_implemetations = self._build_command_to_implementation_dict()
         if bashrc is not None:
             self._setup_bashrc_aliases(bashrc)
 
+    def _build_command_to_implementation_dict(self):
+        return {self._parse_command_name(fun): getattr(self, fun) for fun in dir(self)
+                if callable(getattr(self, fun)) and self._is_command_implementation(fun)}
+
     def _setup_bashrc_aliases(self, bashrc):
         with open(bashrc, 'a') as ofile:
             alias_template = 'alias {0}="{0} > /dev/null 2>&1"\n'