diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 2c484d554..0253e430c 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -1359,7 +1359,7 @@ void GLCanvas3D::Labels::render(const std::vector<const PrintInstance*>& sorted_
         ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
         ImGui::PushStyleColor(ImGuiCol_Border, owner.selected ? ImVec4(0.757f, 0.404f, 0.216f, 1.0f) : ImVec4(0.75f, 0.75f, 0.75f, 1.0f));
         imgui.set_next_window_pos(x, y, ImGuiCond_Always, 0.5f, 0.5f);
-        imgui.begin(owner.title, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove);
+        imgui.begin(owner.title, ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove);
         ImGui::BringWindowToDisplayFront(ImGui::GetCurrentWindow());
         float win_w = ImGui::GetWindowWidth();
         float label_len = imgui.calc_text_size(owner.label).x;