diff --git a/package/lean/autocore/files/arm/sbin/cpuinfo b/package/lean/autocore/files/arm/sbin/cpuinfo
index 148c6d5674..255a69ac38 100755
--- a/package/lean/autocore/files/arm/sbin/cpuinfo
+++ b/package/lean/autocore/files/arm/sbin/cpuinfo
@@ -13,8 +13,7 @@ elif grep -q "mvebu" "/etc/openwrt_release"; then
 elif [ -e "/sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq" ]; then
 	cpu_freq="$(expr $(cat "/sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq") / 1000)MHz"
 elif [ -e "/sys/devices/system/cpu/cpufreq/policy4/cpuinfo_cur_freq" ]; then
-	big_cpu_freq="$(expr $(cat "/sys/devices/system/cpu/cpufreq/policy4/cpuinfo_cur_freq") / 1000)"
-	[ -n "${big_cpu_freq}" ] && big_cpu_freq="${big_cpu_freq}MHz "
+	big_cpu_freq="$(expr $(cat "/sys/devices/system/cpu/cpufreq/policy4/cpuinfo_cur_freq") / 1000)MHz "
 fi
 
 if grep -q "bcm27xx" "/etc/openwrt_release"; then