diff --git a/src/rviz/default_plugin/camera_display.cpp b/src/rviz/default_plugin/camera_display.cpp
index e092e196a..1c7b59788 100644
--- a/src/rviz/default_plugin/camera_display.cpp
+++ b/src/rviz/default_plugin/camera_display.cpp
@@ -193,7 +193,8 @@ void CameraDisplay::onInitialize()
   render_panel_->initialize(context_->getSceneManager(), context_);
 
   setAssociatedWidget(render_panel_);
-  getAssociatedWidgetPanel()->addMaximizeButton();
+  if (auto* dock = getAssociatedWidgetPanel())
+    dock->addMaximizeButton();
 
   render_panel_->setAutoRender(false);
   render_panel_->setOverlaysEnabled(false);
diff --git a/src/rviz/default_plugin/image_display.cpp b/src/rviz/default_plugin/image_display.cpp
index e460a8db1..c0f4257d3 100644
--- a/src/rviz/default_plugin/image_display.cpp
+++ b/src/rviz/default_plugin/image_display.cpp
@@ -131,7 +131,8 @@ void ImageDisplay::onInitialize()
   render_panel_->initialize(img_scene_manager_, context_);
 
   setAssociatedWidget(render_panel_);
-  getAssociatedWidgetPanel()->addMaximizeButton();
+  if (auto* dock = getAssociatedWidgetPanel())
+    dock->addMaximizeButton();
 
   render_panel_->setAutoRender(false);
   render_panel_->setOverlaysEnabled(false);