diff --git a/src/Mod/Part/Gui/TaskAttacher.cpp b/src/Mod/Part/Gui/TaskAttacher.cpp
index 23510f7721..6acff9c966 100644
--- a/src/Mod/Part/Gui/TaskAttacher.cpp
+++ b/src/Mod/Part/Gui/TaskAttacher.cpp
@@ -1073,7 +1073,9 @@ TaskDlgAttacher::~TaskDlgAttacher() = default;
 
 void TaskDlgAttacher::open()
 {
-    Gui::Command::openCommand(QT_TRANSLATE_NOOP("Command", "Edit attachment"));
+    if (!Gui::Command::hasPendingCommand()) {
+        Gui::Command::openCommand(QT_TRANSLATE_NOOP("Command", "Edit attachment"));
+    }
 }
 
 void TaskDlgAttacher::clicked(int)