diff --git a/lib/graphics.js b/lib/graphics.js
index 81ef272..f28ca7c 100644
--- a/lib/graphics.js
+++ b/lib/graphics.js
@@ -401,7 +401,7 @@ function graphics(callback) {
           let cmd = 'fbset -s | grep \'mode "\'; vcgencmd get_mem gpu; tvservice -s; tvservice -n;';
           exec(cmd, function (error, stdout) {
             let lines = stdout.toString().split('\n');
-            if (lines.length > 3 && lines[0].indexOf('mode "' >= -1) && lines[2].indexOf('0x12000a') > -1) {
+            if (lines.length > 3 && lines[0].indexOf('mode "') >= -1 && lines[2].indexOf('0x12000a') > -1) {
               const parts = lines[0].replace('mode', '').replace(/"/g, '').trim().split('x');
               if (parts.length === 2) {
                 result.displays.push({
@@ -417,7 +417,7 @@ function graphics(callback) {
                 })
               }
             }
-            if (lines.length > 1 && lines[1].indexOf('gpu=' >= -1)) {
+            if (lines.length > 1 && lines[1].indexOf('gpu=') >= -1) {
               result.controllers.push({
                 vendor: 'Broadcom',
                 model: 'VideoCore IV',
diff --git a/lib/osinfo.js b/lib/osinfo.js
index 9f8b995..38b6b6b 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -214,7 +214,7 @@ function osInfo(callback) {
               callback(result);
             }
             resolve(result);
-          })
+          });
           //}
         });
       }
diff --git a/lib/util.js b/lib/util.js
index 9063ba2..ab2dfe4 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -261,7 +261,7 @@ function getCodepage() {
     if (!codepage) {
       try {
         const stdout = execSync('echo $LANG');
-        lines = stdout.toString().split('\r\n');
+        const lines = stdout.toString().split('\r\n');
         const parts = lines[0].split('.');
         codepage = parts.length > 1 ? parts[1].trim() : '';
         if (!codepage) {