diff --git a/apps/shell/src/shmsg.c b/apps/shell/src/shmsg.c
index d8c17c09..b39aa724 100755
--- a/apps/shell/src/shmsg.c
+++ b/apps/shell/src/shmsg.c
@@ -577,7 +577,7 @@ int ShellTaskInit(ShellCB *shellCB)
 
 static int ShellKernelReg(unsigned int shellHandle)
 {
-    return ioctl(0, CONSOLE_CONTROL_REG_USERTASK, shellHandle);
+    return ioctl(STDIN_FILENO, CONSOLE_CONTROL_REG_USERTASK, shellHandle);
 }
 
 void *ShellEntry(void *argv)