diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f4fc25..67c91bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -77,6 +77,7 @@ For major (breaking) changes - **version 4, 3 and 2** - see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 5.7.2          | 2021-05-24     | `system()` virtual detection improvement |
 | 5.7.1          | 2021-05-20     | `graphics()` Check for qwMemorySize on Windows |
 | 5.7.0          | 2021-05-20     | `diskLayout()` added smartdata for win (if istalled) |
 | 5.6.22         | 2021-05-18     | `diskLayout()` fixed to small buffer smartdata (linux) |
diff --git a/docs/history.html b/docs/history.html
index ee228f1..1c10a63 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -56,6 +56,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">5.7.2</th>
+                    <td>2021-05-24</td>
+                    <td><span class="code">system()</span> virtual detection improvement</td>
+                  </tr>
                   <tr>
                     <th scope="row">5.7.1</th>
                     <td>2021-05-20</td>
diff --git a/docs/index.html b/docs/index.html
index b197849..302d7ea 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -170,7 +170,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span>&nbsp;</div>
-      <div class="version">New Version: <span id="version">5.7.1</span></div>
+      <div class="version">New Version: <span id="version">5.7.2</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
diff --git a/lib/system.js b/lib/system.js
index e42ce7b..3e39c98 100644
--- a/lib/system.js
+++ b/lib/system.js
@@ -159,22 +159,22 @@ function system(callback) {
             result.model = 'Docker Container';
           }
           try {
-            const stdout = execSync('dmesg 2>/dev/null | grep -iE "virtual|hypervisor" | grep -iE "vmware|qemu|kvm|xen" | grep -vi "Nested Virtualization"');
+            const stdout = execSync('dmesg 2>/dev/null | grep -iE "virtual|hypervisor" | grep -iE "vmware|qemu|kvm|xen" | grep -viE "Nested Virtualization|/virtual/"');
             // detect virtual machines
             let lines = stdout.toString().split('\n');
             if (lines.length > 0) {
               if (result.model === 'Computer') { result.model = 'Virtual machine'; }
               result.virtual = true;
-              if (stdout.toString().toLowerCase().indexOf('vmware') && !result.virtualHost) {
+              if (stdout.toString().toLowerCase().indexOf('vmware') >= 0 && !result.virtualHost) {
                 result.virtualHost = 'VMware';
               }
-              if (stdout.toString().toLowerCase().indexOf('qemu') && !result.virtualHost) {
+              if (stdout.toString().toLowerCase().indexOf('qemu') >= 0 && !result.virtualHost) {
                 result.virtualHost = 'QEMU';
               }
-              if (stdout.toString().toLowerCase().indexOf('xen') && !result.virtualHost) {
+              if (stdout.toString().toLowerCase().indexOf('xen') >= 0 && !result.virtualHost) {
                 result.virtualHost = 'Xen';
               }
-              if (stdout.toString().toLowerCase().indexOf('kvm') && !result.virtualHost) {
+              if (stdout.toString().toLowerCase().indexOf('kvm') >= 0 && !result.virtualHost) {
                 result.virtualHost = 'KVM';
               }
             }