diff --git a/editor/imgui.cpp b/editor/imgui.cpp
index 81ecd59c..e25edb1f 100644
--- a/editor/imgui.cpp
+++ b/editor/imgui.cpp
@@ -372,7 +372,7 @@ void app::do_popup_menu()
             if (!exists)
                 add_inspector(std::exchange(_popup_target, {}));
             {
-                char buf2[10], buf3[128], buf[sizeof buf2 + sizeof buf3 - 1];
+                char buf2[10], buf3[128], buf[sizeof buf2 + sizeof buf3 + 3 - 1];
                 entity_inspector_name(buf2, e.id);
                 entity_friendly_name(buf3, sizeof buf3, e);
                 std::snprintf(buf, sizeof buf, "%s###%s", buf3, buf2);
diff --git a/editor/inspect-draw.cpp b/editor/inspect-draw.cpp
index d5474b8b..ce1e3396 100644
--- a/editor/inspect-draw.cpp
+++ b/editor/inspect-draw.cpp
@@ -33,7 +33,7 @@ void app::draw_inspector()
         }
         auto& e = *eʹ;
 
-        char buf2[10], buf3[128], buf[sizeof buf2 + sizeof buf3 - 1];
+        char buf2[10], buf3[128], buf[sizeof buf2 + sizeof buf3 + 3 - 1];
         ImGui::SetNextWindowSize({375*dpi[0], 0});
         entity_inspector_name(buf2, e.id);
         entity_friendly_name(buf3, sizeof buf3, e);