diff --git a/src/third-party/CMakeLists.txt b/src/third-party/CMakeLists.txt
index cfa12500f1fde..d765a42ff2ee9 100644
--- a/src/third-party/CMakeLists.txt
+++ b/src/third-party/CMakeLists.txt
@@ -158,6 +158,7 @@ if (CURSES)
                 imtui
                 PRIVATE
                 -w
+                -DIMTUI
                 )
 
         target_link_libraries(