diff --git a/source/documentation/tdb/assembler.md b/source/documentation/tdb/assembler.md
index f3a7197..72a9bbe 100644
--- a/source/documentation/tdb/assembler.md
+++ b/source/documentation/tdb/assembler.md
@@ -51,7 +51,7 @@
 
 then there is the description of the TDB dataset itself:
 
-    <#graph> rdf:type tdb:DatasetTDB ;
+    <#dataset> rdf:type tdb:DatasetTDB ;
         tdb:location "DB" ;
 
 The property `tdb:location` gives the file name as a string. It is