diff --git a/src/ImGuiVisitor.cpp b/src/ImGuiVisitor.cpp
index f101dca..f3106ef 100644
--- a/src/ImGuiVisitor.cpp
+++ b/src/ImGuiVisitor.cpp
@@ -741,7 +741,7 @@ void ImGuiVisitor::visit (RenderSource& s)
     if (ImGuiToolkit::IconButton(ICON_FA_PLAY_CIRCLE, "Open in Player"))
         UserInterface::manager().showSourceEditor(&s);
     ImGui::SameLine();
-    if (ImGuiToolkit::IconButton(ICON_FA_WINDOW_MAXIMIZE, "Show Output"))
+    if (ImGuiToolkit::IconButton(ICON_FA_LAPTOP, "Show Output"))
         Settings::application.widget.preview = true;
     ImGui::SetCursorPos(pos);
 
diff --git a/src/UserInterfaceManager.cpp b/src/UserInterfaceManager.cpp
index 3b8f83d..88a4eab 100644
--- a/src/UserInterfaceManager.cpp
+++ b/src/UserInterfaceManager.cpp
@@ -8333,19 +8333,10 @@ SourcePreview::SourcePreview() : source_(nullptr), label_(""), reset_(0)
 
 }
 
-static void deletesource(Source *s)
-{
-    delete s;
-}
-
 void SourcePreview::setSource(Source *s, const string &label)
 {
-    if(source_) {
-        if (source_->ready())
-            delete source_;
-        else
-            std::thread (deletesource, source_).detach();
-    }
+    if(source_)
+        delete source_;
 
     source_ = s;
     label_ = label;