diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 4c9f20437..3c3937449 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -36,5 +36,5 @@ endif()
 
 if(NOT ENABLE_QT_GUI)
 # SDL3
-add_subdirectory(SDL3 EXCLUDE_FROM_ALL)
+add_subdirectory(sdl3 EXCLUDE_FROM_ALL)
 endif()