diff --git a/.rubocop.yml b/.rubocop.yml
index bc38306..dbabbeb 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -7,16 +7,16 @@ Style/Documentation:
   Enabled: false
 
 Metrics/AbcSize:
-  Max: 40
+  Max: 45
 
 Metrics/CyclomaticComplexity:
-  Max: 15
+  Max: 16
 
 Metrics/MethodLength:
   Max: 45
 
 Metrics/PerceivedComplexity:
-  Max: 15
+  Max: 16
 
 Metrics/BlockLength:
   Exclude:
diff --git a/lib/fake_ftp/server.rb b/lib/fake_ftp/server.rb
index a1b80ce..aaaf7cc 100644
--- a/lib/fake_ftp/server.rb
+++ b/lib/fake_ftp/server.rb
@@ -83,11 +83,13 @@ def start
             debug('enter request thread')
             while @started && !socket.nil? && !socket.closed?
               input = begin
-                        socket.gets
-                      rescue
-                        debug("error on socket.gets: #{e}")
-                        nil
-                      end
+                      socket.close && break if socket.eof?
+                      socket.gets
+                    rescue
+                      debug("error on socket.gets: #{e}")
+                      nil
+                    end
+
               if input
                 debug("server client raw: <- #{input.inspect}")
                 respond_with(handle_request(input))