diff --git a/CHANGELOG.md b/CHANGELOG.md
index 411041d..4c8eafd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 4.18.3         | 2020-01-10     | `fsSize()` fix excluding loop/snap devices |
 | 4.18.2         | 2020-01-10     | `memLayout()` fix memsize linux (modules >= 32 GB) |
 | 4.18.1         | 2020-01-07     | updated docs |
 | 4.18.0         | 2020-01-07     | `networkInterfaces()` added dhcp for mac os, added dhcp linux fallback |
diff --git a/docs/history.html b/docs/history.html
index b2bf6a5..d2f12a7 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -83,6 +83,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.18.3</th>
+                    <td>2020-01-10</td>
+                    <td><span class="code">fsSize()</span> fix excluding loop/snap devices</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.18.2</th>
                     <td>2020-01-10</td>
diff --git a/docs/index.html b/docs/index.html
index fd3adb2..18b0625 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -168,7 +168,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span></div>
-      <div class="version">Current Version: <span id="version">4.18.2</span></div>
+      <div class="version">Current Version: <span id="version">4.18.3</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/filesystem.js b/lib/filesystem.js
index 9f693dd..e3d35a8 100644
--- a/lib/filesystem.js
+++ b/lib/filesystem.js
@@ -71,7 +71,7 @@ function fsSize(callback) {
       if (_linux || _freebsd || _openbsd || _netbsd || _darwin) {
         let cmd = '';
         if (_darwin) cmd = 'df -lkP | grep ^/';
-        if (_linux) cmd = 'df -lkPT | grep ^/';
+        if (_linux) cmd = 'df -lkPTx squashfs | grep ^/';
         if (_freebsd || _openbsd || _netbsd) cmd = 'df -lkPT';
         exec(cmd, function (error, stdout) {
           if (!error) {