diff --git a/tildes/scss/modules/_btn.scss b/tildes/scss/modules/_btn.scss
index c878d88..9d5783d 100644
--- a/tildes/scss/modules/_btn.scss
+++ b/tildes/scss/modules/_btn.scss
@@ -33,9 +33,9 @@
 }
 
 .btn-used {
-    background-color: darken($violet, 3%);
-    border-color: darken($violet, 8%);
-    color: #fff;
+  background-color: darken($violet, 3%);
+  border-color: darken($violet, 8%);
+  color: #fff;
 
   &:hover {
     background-color: darken($blue, 3%);