1 files changed, 1 insertions, 0 deletions
diff --git a/lib/drb/drb.rb b/lib/drb/drb.rb
index 20e658e611..7dd0f01e76 100644
--- a/lib/drb/drb.rb
+++ b/lib/drb/drb.rb
@@ -1208,6 +1208,7 @@ module DRb
     end
 
     def alive?  # :nodoc:
+      return false unless @protocol
       @protocol.alive?
     end
   end