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-rw-r--r--src/widgets/dropdown.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/widgets/dropdown.cpp b/src/widgets/dropdown.cpp
index d919eff7c..1f32b778e 100644
--- a/src/widgets/dropdown.cpp
+++ b/src/widgets/dropdown.cpp
@@ -116,6 +116,8 @@ struct DropdownWindow : Window {
DropdownWindow(Window *parent, const DropDownList *list, int selected, int button, bool instant_close, const Point &position, const Dimension &size, Colours wi_colour, bool scroll)
: Window(&_dropdown_desc)
{
+ assert(list->Length() > 0);
+
this->position = position;
this->CreateNestedTree();