diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 1e661962b7..194b7c39bb 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -13,6 +13,7 @@ config RT_USING_DEVICE_IPC
 
 config RT_UNAMED_PIPE_NUMBER
     int "The number of unamed pipe"
+    depends on RT_USING_DEVICE_IPC
     default 64
 
 if RT_USING_DEVICE_IPC