diff --git a/applets/systemloadviewer/package/contents/ui/SystemLoadViewer.qml b/applets/systemloadviewer/package/contents/ui/SystemLoadViewer.qml
--- a/applets/systemloadviewer/package/contents/ui/SystemLoadViewer.qml
+++ b/applets/systemloadviewer/package/contents/ui/SystemLoadViewer.qml
@@ -195,6 +195,7 @@
             }
             else if (sourceName == memBuffers) {
                 memoryUsageProportions[1] = fitMemoryUsage(data.value)
+                memoryUsageProportionsChanged()
             }
             else if (sourceName == swapUsed) {
                 swapUsageProportion = fitSwapUsage(data.value)