diff --git a/src/service-app/classes/DisplayBacklightWorker.ts b/src/service-app/classes/DisplayBacklightWorker.ts
index f07fb7d4..f17c885a 100644
--- a/src/service-app/classes/DisplayBacklightWorker.ts
+++ b/src/service-app/classes/DisplayBacklightWorker.ts
@@ -85,7 +85,7 @@ export class DisplayBacklightWorker extends DaemonWorker {
                 value = controller.brightness.readValue();
                 maxBrightness = controller.maxBrightness.readValue();
                 if (!Number.isNaN(value) && value !== 0) {
-                    this.tccd.autosave.displayBrightness = Math.round((value * 100) / maxBrightness);
+                    this.tccd.autosave.displayBrightness = (value * 100) / maxBrightness;
                 }
             } catch (err) {
                 this.tccd.logLine('DisplayBacklightWorker => ' + err);
@@ -110,7 +110,7 @@ export class DisplayBacklightWorker extends DaemonWorker {
                 if (value === 0) {
                     this.tccd.logLine('DisplayBacklightWorker: Refused to save display brightness 0 from ' + controller.driver);
                 } else {
-                    this.tccd.autosave.displayBrightness = Math.round((value * 100) / maxBrightness);
+                    this.tccd.autosave.displayBrightness = (value * 100) / maxBrightness;
                     this.tccd.logLine('DisplayBacklightWorker: Save display brightness '
                         + this.tccd.autosave.displayBrightness + '% (' + value + ') on exit');
                 }