diff --git a/docs/toolkit-walkthrough.md b/docs/toolkit-walkthrough.md
index 4af0c41..19a5064 100644
--- a/docs/toolkit-walkthrough.md
+++ b/docs/toolkit-walkthrough.md
@@ -111,7 +111,7 @@ import io.archivesunleashed.udfs._
 RecordLoader.loadArchives("/aut-resources/Sample-Data/*.gz", sc)
   .all()
   .keepValidPagesDF()
-  .groupBy($"domain"))
+  .groupBy($"domain")
   .count()
   .sort($"count".desc)
   .show(10, false)
diff --git a/website/versioned_docs/version-1.0.0/toolkit-walkthrough.md b/website/versioned_docs/version-1.0.0/toolkit-walkthrough.md
index c712446..b0bff43 100644
--- a/website/versioned_docs/version-1.0.0/toolkit-walkthrough.md
+++ b/website/versioned_docs/version-1.0.0/toolkit-walkthrough.md
@@ -112,7 +112,7 @@ import io.archivesunleashed.udfs._
 RecordLoader.loadArchives("/aut-resources/Sample-Data/*.gz", sc)
   .all()
   .keepValidPagesDF()
-  .groupBy($"domain"))
+  .groupBy($"domain")
   .count()
   .sort($"count".desc)
   .show(10, false)