diff --git a/src/ipc/client.cr b/src/ipc/client.cr
index 74d962c..705047c 100644
--- a/src/ipc/client.cr
+++ b/src/ipc/client.cr
@@ -1,6 +1,6 @@
 
 class IPC::Client < IPC::Context
-	property server_fd : Int32
+	property server_fd : Int32?
 
 	# By default, this is a client.
 	def initialize(service_name : String)