diff --git a/spec/terminal_session.rb b/spec/terminal_session.rb
index bbadb9a..8eeac32 100644
--- a/spec/terminal_session.rb
+++ b/spec/terminal_session.rb
@@ -61,12 +61,12 @@ class TerminalSession
 
   private
 
-  def socket_name
-    @socket_name ||= SecureRandom.hex(6)
+  def tmux_socket_name
+    @tmux_socket_name ||= SecureRandom.hex(6)
   end
 
   def tmux_command(cmd)
-    out = `tmux -u -L #{socket_name} #{cmd}`
+    out = `tmux -u -L #{tmux_socket_name} #{cmd}`
 
     raise('tmux error') unless $?.success?