diff --git a/target/linux/brcm47xx/base-files/lib/preinit/05_init_interfaces_brcm b/target/linux/brcm47xx/base-files/lib/preinit/05_init_interfaces_brcm
index e7e7d54082..6d43217234 100644
--- a/target/linux/brcm47xx/base-files/lib/preinit/05_init_interfaces_brcm
+++ b/target/linux/brcm47xx/base-files/lib/preinit/05_init_interfaces_brcm
@@ -21,7 +21,7 @@ check_module () {
 
   insmod "$module" "$params"
   sleep 1
-  grep "^$module" /proc/modules
+  grep "^$module" /proc/modules > /dev/null
   return $?
 }