diff --git a/src/plugins/qmlprofiler/qml/Overview.qml b/src/plugins/qmlprofiler/qml/Overview.qml
index 9fed5a9c37c..40869602525 100644
--- a/src/plugins/qmlprofiler/qml/Overview.qml
+++ b/src/plugins/qmlprofiler/qml/Overview.qml
@@ -92,6 +92,8 @@ Canvas {
 
     // ***** slots
     onPaint: {
+        if (context === null)
+            return; // canvas isn't ready
         Plotter.qmlProfilerModelProxy = qmlProfilerModelProxy;
         if (dataReady) {
             Plotter.plot(canvas, context, region);
diff --git a/src/plugins/qmlprofiler/qml/TimeDisplay.qml b/src/plugins/qmlprofiler/qml/TimeDisplay.qml
index 107a5678d9e..12cecf435f1 100644
--- a/src/plugins/qmlprofiler/qml/TimeDisplay.qml
+++ b/src/plugins/qmlprofiler/qml/TimeDisplay.qml
@@ -49,6 +49,8 @@ Canvas {
     }
 
     onPaint: {
+        if (context === null)
+            return; // canvas isn't ready
         context.fillStyle = "white";
         context.fillRect(0, 0, width, height);
 
diff --git a/src/plugins/qmlprofiler/qml/TimeMarks.qml b/src/plugins/qmlprofiler/qml/TimeMarks.qml
index 6bf6be330cd..f9ac8e3590e 100644
--- a/src/plugins/qmlprofiler/qml/TimeMarks.qml
+++ b/src/plugins/qmlprofiler/qml/TimeMarks.qml
@@ -47,6 +47,8 @@ Canvas {
     onYChanged: requestPaint()
 
     onPaint: {
+        if (context === null)
+            return; // canvas isn't ready
         drawBackgroundBars( context, region );
 
         var totalTime = endTime - startTime;