diff --git a/files/src/main/java/de/nbscloud/files/FileSystemService.java b/files/src/main/java/de/nbscloud/files/FileSystemService.java
index 422221a..d698d75 100644
--- a/files/src/main/java/de/nbscloud/files/FileSystemService.java
+++ b/files/src/main/java/de/nbscloud/files/FileSystemService.java
@@ -227,17 +227,17 @@ public class FileSystemService {
         }
     }
 
-    public long getSpaceOnDevice(String device) {
+    public long getDiskSize(String device) {
         try {
             final Process process = Runtime.getRuntime()
                                            .exec(new String[]{"lsblk", "-b", "-o", "SIZE", "-n", device});
-            final String space = new BufferedReader(new InputStreamReader(process.getInputStream())).readLine();
+            final String size = new BufferedReader(new InputStreamReader(process.getInputStream())).readLine();
 
             process.destroy();
 
-            return Long.parseLong(space);
+            return Long.parseLong(size);
         } catch (IOException e) {
-            throw new FileSystemServiceException("Could not get file", e);
+            throw new FileSystemServiceException("Could not get disk size", e);
         }
     }
 
diff --git a/files/src/main/java/de/nbscloud/files/controller/WidgetController.java b/files/src/main/java/de/nbscloud/files/controller/WidgetController.java
index 0bc7aa3..f2a02d1 100644
--- a/files/src/main/java/de/nbscloud/files/controller/WidgetController.java
+++ b/files/src/main/java/de/nbscloud/files/controller/WidgetController.java
@@ -32,11 +32,15 @@ public class WidgetController {
     @GetMapping("files/widgets/diskUsage")
     public String getDiskUsage(HttpServletRequest request, HttpServletResponse response, Model model) {
         final String device = this.fileSystemService.getDevice();
+        final long diskSize = this.fileSystemService.getDiskSize(device);
+        final long used = FileUtils.sizeOfDirectory(Paths.get(this.filesConfig.getBaseDir()).toFile());
+        final long available = diskSize - used;
 
         model.addAttribute("baseDir", this.filesConfig.getBaseDir());
         model.addAttribute("device", device);
-        model.addAttribute("available", this.fileSystemService.getSpaceOnDevice(device));
-        model.addAttribute("used", FileUtils.sizeOfDirectory(Paths.get(this.filesConfig.getBaseDir()).toFile()));
+        model.addAttribute("available", available);
+        model.addAttribute("used", used);
+        model.addAttribute("diskSize", diskSize);
 
         return "files/widgets/diskUsage :: file-disk-usage";
     }
diff --git a/files/src/main/resources/i18n/files_messages.properties b/files/src/main/resources/i18n/files_messages.properties
index b6a010f..9d15bc7 100644
--- a/files/src/main/resources/i18n/files_messages.properties
+++ b/files/src/main/resources/i18n/files_messages.properties
@@ -29,6 +29,7 @@ nbscloud.files.file-disk-usage-widget-table.basedir=Base dir\:
 nbscloud.files.file-disk-usage-widget-table.device=Host device\:
 nbscloud.files.file-disk-usage-widget-table.available=Available\:
 nbscloud.files.file-disk-usage-widget-table.used=Used\:
+nbscloud.files.file-disk-usage-widget-table.disksize=Disk size\:
 
 nbscloud.files.delete.success=File deleted
 nbscloud.files.rename.success=File renamed
diff --git a/files/src/main/resources/i18n/files_messages_de_DE.properties b/files/src/main/resources/i18n/files_messages_de_DE.properties
index 481b34e..ebee3b3 100644
--- a/files/src/main/resources/i18n/files_messages_de_DE.properties
+++ b/files/src/main/resources/i18n/files_messages_de_DE.properties
@@ -29,6 +29,7 @@ nbscloud.files.file-disk-usage-widget-table.basedir=Verzeichnis\:
 nbscloud.files.file-disk-usage-widget-table.device=Ger\u00E4t\:
 nbscloud.files.file-disk-usage-widget-table.available=Verf\u00FCgbar\:
 nbscloud.files.file-disk-usage-widget-table.used=Belegt\:
+nbscloud.files.file-disk-usage-widget-table.disksize=Gr\u00F6\u00DFe\:
 
 nbscloud.files.delete.success=Datei gel\u00F6scht
 nbscloud.files.rename.success=Datei verschoben/umbenannt
diff --git a/files/src/main/resources/templates/files/widgets/diskUsage.html b/files/src/main/resources/templates/files/widgets/diskUsage.html
index 4cc86ad..8610c2f 100644
--- a/files/src/main/resources/templates/files/widgets/diskUsage.html
+++ b/files/src/main/resources/templates/files/widgets/diskUsage.html
@@ -10,12 +10,16 @@
             <td th:text="${device}" />
         </tr>
         <tr>
-            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.available}" />
-            <td th:text="${@filesFormatter.formatSize(available)}" />
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.disksize}" />
+            <td th:text="${@filesFormatter.formatSize(diskSize)}" />
         </tr>
         <tr>
             <td th:text="#{nbscloud.files.file-disk-usage-widget-table.used}" />
             <td th:text="${@filesFormatter.formatSize(used)}" />
         </tr>
+        <tr>
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.available}" />
+            <td th:text="${@filesFormatter.formatSize(available)}" />
+        </tr>
     </table>
 </div>
\ No newline at end of file