diff --git a/common/js/common.js b/common/js/common.js
index 67099e8d8..1fe7670f4 100644
--- a/common/js/common.js
+++ b/common/js/common.js
@@ -783,11 +783,12 @@ function getColorScheme() {
 	}
 }
 function setColorScheme(color_scheme) {
-	if (color_scheme !== 'dark') {
-		color_scheme = 'light';
+	if (color_scheme === 'dark' || color_scheme === 'light') {
+		$('body').addClass('color_scheme_' + color_scheme).removeClass('color_scheme_' + (color_scheme === 'dark' ? 'light' : 'dark'));
+		XE.cookie.set('rx_color_scheme', color_scheme, { path: window.XE.URI(default_url).pathname(), expires: 365 });
+	} else {
+		XE.cookie.remove('rx_color_scheme', { path: window.XE.URI(default_url).pathname() });
 	}
-	$('body').addClass('color_scheme_' + color_scheme).removeClass('color_scheme_' + (color_scheme === 'dark' ? 'light' : 'dark'));
-	XE.cookie.set('rx_color_scheme', color_scheme, { path: window.XE.URI(default_url).pathname(), expires: 365 });
 }
 
 /* 미리보기 */