diff --git a/src/websocketd.cr b/src/websocketd.cr
index d2e1e66..58834e9 100644
--- a/src/websocketd.cr
+++ b/src/websocketd.cr
@@ -383,11 +383,13 @@ Context.service.loop do |event|
 		info "IPC::Event::Timer"
 		sending_ping_messages
 	when IPC::Event::Connection
-		info "IPC::Event::Connection: #{event.fd}"
+		debug "IPC::Event::Connection: #{event.fd}"
+
 	when IPC::Event::Disconnection
-		info "IPC::Event::Disconnection: #{event.fd}"
+		debug "IPC::Event::Disconnection: #{event.fd}"
+
 	when IPC::Event::ExtraSocket
-		info "IPC::Event::ExtraSocket: #{event.fd}"
+		debug "IPC::Event::ExtraSocket: #{event.fd}"
 
 		# 1. accept new websocket clients
 		if server.fd == event.fd
@@ -404,19 +406,22 @@ Context.service.loop do |event|
 
 		# 2. active fd != server fd
 		activefd = event.fd
+		if activefd <= 0
+			danger "faulty activefd: #{activefd}"
+		end
 		websocket_switching_procedure activefd
 
 	when IPC::Event::Switch
-		puts "IPC::Event::Switch: from fd #{event.fd}"
+		debug "IPC::Event::Switch: from fd #{event.fd}"
 		raise "Not implemented."
 
 	# IPC::Event::Message has to be the last entry
 	# because ExtraSocket and Switch inherit from Message class
 	when IPC::Event::MessageSent
-		debug "IPC::Event::MessageSent: #{event.fd}"
+		danger "IPC::Event::MessageSent: #{event.fd}"
 
 	when IPC::Event::MessageReceived
-		info "IPC::Event::MessageReceived: #{event.fd}"
+		debug "IPC::Event::MessageReceived: #{event.fd}"
 		raise "Not implemented."
 	end
 end