diff --git a/lib/cpu.js b/lib/cpu.js
index 63934df..654f2f4 100644
--- a/lib/cpu.js
+++ b/lib/cpu.js
@@ -322,21 +322,21 @@ function getCpu() {
           if (result.cache.l3) { result.cache.l3 = parseInt(result.cache.l3) * (result.cache.l3.indexOf('K') !== -1 ? 1024 : 1); }
 
           // socket type
-          lines = [];
+          let lines2 = [];
           exec('export LC_ALL=C; dmidecode –t 4 2>/dev/null | grep "Upgrade: Socket"; unset LC_ALL', function (error2, stdout2) {
-            lines = stdout2.toString().split('\n');
-            if (lines && lines.length) {
-              result.socket = util.getValue(lines, 'Upgrade').replace('Socket', '').trim();
+            lines2 = stdout2.toString().split('\n');
+            if (lines2 && lines2.length) {
+              result.socket = util.getValue(lines2, 'Upgrade').replace('Socket', '').trim();
             }
 
             // # processurs & # threads/core - method 1
             let threadsPerCoreInt = 0;
-            lines = [];
+            let lines3 = [];
             exec('cat /proc/cpuinfo | grep -E "physical id|core id"', function (error2, stdout3) {
-              lines = stdout3.toString().split('\n');
-              if (lines && lines.length) {
-                result.processors = util.countUniqueLines(lines, 'physical id') || 1;
-                result.physicalCores = util.countUniqueLines(lines, 'core id') / result.processors;
+              lines3 = stdout3.toString().split('\n');
+              if (lines3 && lines3.length) {
+                result.processors = util.countUniqueLines(lines3, 'physical id') || 1;
+                result.physicalCores = util.countUniqueLines(lines3, 'core id') / result.processors;
                 if (result.physicalCores) {
                   threadsPerCoreInt = result.cores / result.physicalCores;
                 }