diff --git a/ui-ngx/src/app/shared/components/json-object-edit.component.scss b/ui-ngx/src/app/shared/components/json-object-edit.component.scss
index 44a6028717..dfa09ce273 100644
--- a/ui-ngx/src/app/shared/components/json-object-edit.component.scss
+++ b/ui-ngx/src/app/shared/components/json-object-edit.component.scss
@@ -16,7 +16,7 @@
 .tb-json-object {
   position: relative;
 
-  .fill-height {
+  &.fill-height {
     height: 100%;
   }