diff --git a/site/src/main.imba b/site/src/main.imba
index 944cba4..043bab8 100644
--- a/site/src/main.imba
+++ b/site/src/main.imba
@@ -87,8 +87,9 @@ tag c-tag < c-el
 
 tag c-tag-def < c-el
 	<self[c:blue4]>
-		"tag "
+		data || "tag "
 		<[c:green5 d:inline]><slot>
+
 tag c-let < c-el
 	<self[c:blue4]>
 		"let "
diff --git a/site/src/views/usage.imba b/site/src/views/usage.imba
index 729b4cf..46eedf9 100644
--- a/site/src/views/usage.imba
+++ b/site/src/views/usage.imba
@@ -217,7 +217,7 @@ tag view-usage
 		<b> "Validates value:"
 		<imba-code url="/{("one2four/" + R.params.one2four if R.params.one2four) || ''}">
 			"""
-			{<c-tag-def> "valid{<.c-br> '('}{<c-el> 'v'}{<.c-br> ')'}"}
+			{<c-tag-def data='def '> "valid{<.c-br> '('}{<c-el> 'v'}{<.c-br> ')'}"}
 			    {<c-c> 0} {<c-op> '<'} v {<c-op> 'and'} v {<c-op> '<'} {<c-c> 4}
 
 			{<c-c> 'R'}{<c-op> '.'}setters{<c-op> '.'}one2four {<c-op> '='} {<c-fl> 'do'} {<c-op> '|'}v{<c-op> '|'} valid{<.c-br> '('}v{<.c-br> ')'} {<c-fl> '?'} v {<c-fl> ':'} {<c-c> 'R'}{<c-op> '.'}params{<c-op> '.'}one2four