1 files changed, 1 insertions, 1 deletions
diff --git a/lib/drb/extservm.rb b/lib/drb/extservm.rb
index 7e70a3cd82..5649da5c72 100644
--- a/lib/drb/extservm.rb
+++ b/lib/drb/extservm.rb
@@ -38,7 +38,7 @@ module DRb
       synchronize do
         while true
           server = @servers[name]
-          return server if server&.alive?
+          return server if server && server.alive? # server may be `false'
           invoke_service(name)
           @cond.wait
         end