diff --git a/src/plugins/clangcodemodel/clangdiagnosticmanager.cpp b/src/plugins/clangcodemodel/clangdiagnosticmanager.cpp
index 78db10c80d6..8f35bee0a44 100644
--- a/src/plugins/clangcodemodel/clangdiagnosticmanager.cpp
+++ b/src/plugins/clangcodemodel/clangdiagnosticmanager.cpp
@@ -353,7 +353,7 @@ static void addTask(const ClangBackEnd::DiagnosticContainer &diagnostic, bool is
                           diagnostic.location.line,
                           Constants::TASK_CATEGORY_DIAGNOSTICS,
                           icon,
-                          /*addTextMark =*/ false));
+                          Task::NoOptions));
 }
 
 void ClangDiagnosticManager::clearTaskHubIssues()
diff --git a/src/plugins/projectexplorer/task.cpp b/src/plugins/projectexplorer/task.cpp
index d076b3e349d..83409fadd5a 100644
--- a/src/plugins/projectexplorer/task.cpp
+++ b/src/plugins/projectexplorer/task.cpp
@@ -61,8 +61,8 @@ unsigned int Task::s_nextId = 1;
 
 Task::Task(TaskType type_, const QString &description_,
            const Utils::FileName &file_, int line_, Core::Id category_,
-           const QIcon &icon, bool addTextMark) :
-    taskId(s_nextId), type(type_), addTextMark(addTextMark), description(description_),
+           const QIcon &icon, Options options) :
+    taskId(s_nextId), type(type_), options(options), description(description_),
     file(file_), line(line_), movedLine(line_), category(category_),
     icon(icon.isNull() ? taskTypeIcon(type_) : icon)
 {
diff --git a/src/plugins/projectexplorer/task.h b/src/plugins/projectexplorer/task.h
index a0f9c168e71..f3e1b76c88b 100644
--- a/src/plugins/projectexplorer/task.h
+++ b/src/plugins/projectexplorer/task.h
@@ -52,11 +52,18 @@ public:
         Warning
     };
 
+    enum Option : char {
+        NoOptions   = 0,
+        AddTextMark = 1 << 0,
+        FlashWorthy = 1 << 1,
+    };
+    using Options = char;
+
     Task() = default;
     Task(TaskType type, const QString &description,
          const Utils::FileName &file, int line, Core::Id category,
          const QIcon &icon = QIcon(),
-         bool addTextMark = true);
+         Options options = AddTextMark | FlashWorthy);
 
     static Task compilerMissingTask();
     static Task buildConfigurationMissingTask();
@@ -66,7 +73,7 @@ public:
 
     unsigned int taskId = 0;
     TaskType type = Unknown;
-    bool addTextMark = true;
+    Options options = AddTextMark | FlashWorthy;
     QString description;
     Utils::FileName file;
     int line = -1;
diff --git a/src/plugins/projectexplorer/taskhub.cpp b/src/plugins/projectexplorer/taskhub.cpp
index 0f00e79e9a6..726034f0664 100644
--- a/src/plugins/projectexplorer/taskhub.cpp
+++ b/src/plugins/projectexplorer/taskhub.cpp
@@ -154,7 +154,7 @@ void TaskHub::addTask(Task task)
         task.line = -1;
     task.movedLine = task.line;
 
-    if (task.addTextMark && task.line != -1)
+    if ((task.options & Task::AddTextMark) && task.line != -1)
         task.setMark(new TaskMark(task));
     emit m_instance->taskAdded(task);
 }
diff --git a/src/plugins/projectexplorer/taskwindow.cpp b/src/plugins/projectexplorer/taskwindow.cpp
index 215ec1eaee3..79255cd367d 100644
--- a/src/plugins/projectexplorer/taskwindow.cpp
+++ b/src/plugins/projectexplorer/taskwindow.cpp
@@ -446,9 +446,12 @@ void TaskWindow::addTask(const Task &task)
     emit tasksChanged();
     navigateStateChanged();
 
-    if (task.type == Task::Error && d->m_filter->filterIncludesErrors()
-            && !d->m_filter->filteredCategories().contains(task.category))
+    if ((task.options & Task::FlashWorthy)
+         && task.type == Task::Error
+         && d->m_filter->filterIncludesErrors()
+         && !d->m_filter->filteredCategories().contains(task.category)) {
         flash();
+    }
 }
 
 void TaskWindow::removeTask(const Task &task)