diff --git a/scss/preferences.scss b/scss/preferences.scss
index 4abf02c457..d1e403fe02 100644
--- a/scss/preferences.scss
+++ b/scss/preferences.scss
@@ -31,6 +31,7 @@
 @import "components/textLink";
 @import "components/virtualized-table";
 @import "components/window";
+@import "components/item-tree";
 
 // Panes
 // --------------------------------------------------