diff --git a/package/sdl2_gfx/Config.in b/package/sdl2_gfx/Config.in
index 357647f4a6..f5dafc56f3 100644
--- a/package/sdl2_gfx/Config.in
+++ b/package/sdl2_gfx/Config.in
@@ -1,5 +1,5 @@
 config BR2_PACKAGE_SDL2_GFX
-	bool "SDL2_gfx"
+	bool "sdl2_gfx"
 	depends on BR2_PACKAGE_SDL2
 	help
 	  The SDL2_gfx library is an extension to the SDL2 library
diff --git a/package/sdl2_image/Config.in b/package/sdl2_image/Config.in
index 3064f94477..9b4a38354f 100644
--- a/package/sdl2_image/Config.in
+++ b/package/sdl2_image/Config.in
@@ -1,5 +1,5 @@
 config BR2_PACKAGE_SDL2_IMAGE
-	bool "SDL2_image"
+	bool "sdl2_image"
 	depends on BR2_PACKAGE_SDL2
 	help
 	  SDL2_image is an image file loading library. It loads images
diff --git a/package/sdl2_ttf/Config.in b/package/sdl2_ttf/Config.in
index cb77059ae0..fc870a71c5 100644
--- a/package/sdl2_ttf/Config.in
+++ b/package/sdl2_ttf/Config.in
@@ -1,5 +1,5 @@
 config BR2_PACKAGE_SDL2_TTF
-	bool "SDL2_TTF"
+	bool "sdl2_ttf"
 	depends on BR2_PACKAGE_SDL2
 	select BR2_PACKAGE_FREETYPE
 	help