diff --git a/imgui-sys/src/lib.rs b/imgui-sys/src/lib.rs
index eb77a9c..066e91b 100644
--- a/imgui-sys/src/lib.rs
+++ b/imgui-sys/src/lib.rs
@@ -561,6 +561,7 @@ pub struct ImGuiIO {
     pub display_visible_max: ImVec2,
 
     pub osx_behaviors: bool,
+    pub opt_cursor_blink: bool,
 
     pub render_draw_lists_fn: Option<extern "C" fn(data: *mut ImDrawData)>,