diff --git a/include/SDL_config.h.cmake b/include/SDL_config.h.cmake
index 7f96bbe2f..ee4ffeb8f 100644
--- a/include/SDL_config.h.cmake
+++ b/include/SDL_config.h.cmake
@@ -277,6 +277,7 @@
 #cmakedefine SDL_VIDEO_DISABLED @SDL_VIDEO_DISABLED@
 #cmakedefine SDL_POWER_DISABLED @SDL_POWER_DISABLED@
 #cmakedefine SDL_FILESYSTEM_DISABLED @SDL_FILESYSTEM_DISABLED@
+#cmakedefine SDL_LOCALE_DISABLED @SDL_LOCALE_DISABLED@
 
 /* Enable various audio drivers */
 #cmakedefine SDL_AUDIO_DRIVER_ALSA @SDL_AUDIO_DRIVER_ALSA@
diff --git a/include/SDL_config.h.in b/include/SDL_config.h.in
index 0d981b410..a6ab9015e 100644
--- a/include/SDL_config.h.in
+++ b/include/SDL_config.h.in
@@ -263,6 +263,7 @@
 #undef SDL_VIDEO_DISABLED
 #undef SDL_POWER_DISABLED
 #undef SDL_FILESYSTEM_DISABLED
+#undef SDL_LOCALE_DISABLED
 
 /* Enable various audio drivers */
 #undef SDL_AUDIO_DRIVER_AAUDIO