diff --git a/_includes/style.scss b/_includes/style.scss
index b8a54b1..6112af8 100644
--- a/_includes/style.scss
+++ b/_includes/style.scss
@@ -18,7 +18,7 @@ $background: url({{ site.github.url }}/images/background.png);
 $font-color: #333;
 $font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", "meiryo", "arial", "sans-serif";
 $font-size: 18px;
-$font-size-mobile: 19px;
+$font-size-mobile: 16px;
 $letter-spacing: 0.075em;
 $line-height: 1.4em;
 $selection-background: #659b4b;