diff --git a/phpBB/includes/captcha/fonts/GenR102.ttf b/phpBB/includes/captcha/fonts/genr102.ttf
similarity index 100%
rename from phpBB/includes/captcha/fonts/GenR102.ttf
rename to phpBB/includes/captcha/fonts/genr102.ttf
diff --git a/phpBB/includes/captcha/fonts/MgOpenCosmeticaBold.ttf b/phpBB/includes/captcha/fonts/mgopencosmeticabold.ttf
similarity index 100%
rename from phpBB/includes/captcha/fonts/MgOpenCosmeticaBold.ttf
rename to phpBB/includes/captcha/fonts/mgopencosmeticabold.ttf
diff --git a/phpBB/includes/captcha/fonts/Rubbfont.ttf b/phpBB/includes/captcha/fonts/rubbfont.ttf
similarity index 100%
rename from phpBB/includes/captcha/fonts/Rubbfont.ttf
rename to phpBB/includes/captcha/fonts/rubbfont.ttf