diff --git a/sass/_discussion.scss b/sass/_discussion.scss
new file mode 100644
index 0000000000..b6c4c49c19
--- /dev/null
+++ b/sass/_discussion.scss
@@ -0,0 +1,3 @@
+secondaryHeader {
+  @extend .topbar;
+}
diff --git a/sass/application.scss b/sass/application.scss
index 2aebcee3c9..39ccb804e8 100644
--- a/sass/application.scss
+++ b/sass/application.scss
@@ -13,6 +13,7 @@
 @import "profile";
 @import "wiki-create", "wiki";
 @import "activation";
+@import "discussion";
 
 // left over
 @import "theme";