diff --git a/app/assets/javascripts/views/challenge_modal/challenge-modal.pug b/app/assets/javascripts/views/challenge_modal/challenge-modal.pug
index 9ad61505e..2c271cff5 100644
--- a/app/assets/javascripts/views/challenge_modal/challenge-modal.pug
+++ b/app/assets/javascripts/views/challenge_modal/challenge-modal.pug
@@ -1,5 +1,5 @@
 .sk-modal-background(ng-click="ctrl.cancel()")
-#privileges-modal.sk-modal-content
+#privileges-modal.challenge-modal.sk-modal-content
   .sn-component
     .sk-panel
       .sk-panel-header
diff --git a/app/assets/stylesheets/_modals.scss b/app/assets/stylesheets/_modals.scss
index 7d4c7a0ed..5b40f99e1 100644
--- a/app/assets/stylesheets/_modals.scss
+++ b/app/assets/stylesheets/_modals.scss
@@ -11,6 +11,12 @@
   }
 }
 
+.challenge-modal {
+  .sk-panel .sk-panel-header {
+    justify-content: center;
+  }
+}
+
 #privileges-modal {
   min-width: 400px;
   max-width: 700px;
@@ -21,7 +27,6 @@
 
   .sk-panel-header {
     position: relative;
-    justify-content: center;
   }
 
   .close-button {