diff --git a/os/run/uart.run b/os/run/uart.run
index d160ba0174..5ed156769f 100644
--- a/os/run/uart.run
+++ b/os/run/uart.run
@@ -24,6 +24,7 @@ set config  {
 			<service name="RAM"/>
 			<service name="IRQ"/>
 			<service name="IO_MEM"/>
+			<service name="IO_PORT"/>
 			<service name="CAP"/>
 			<service name="PD"/>
 			<service name="RM"/>