diff --git a/package/sdl/sdl.mk b/package/sdl/sdl.mk
index 05d9a54701..78eb4ddd8d 100644
--- a/package/sdl/sdl.mk
+++ b/package/sdl/sdl.mk
@@ -34,7 +34,7 @@ SDL_DEPENDENCIES += directfb
 SDL_CONF_OPTS += --enable-video-directfb=yes
 SDL_CONF_ENV = ac_cv_path_DIRECTFBCONFIG=$(STAGING_DIR)/usr/bin/directfb-config
 else
-SDL_CONF_OPTS = --enable-video-directfb=no
+SDL_CONF_OPTS += --enable-video-directfb=no
 endif
 
 ifeq ($(BR2_PACKAGE_SDL_QTOPIA),y)