diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..582fa72
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+java system
diff --git a/src/main/scala/slick/additions/AdditionsProfile.scala b/src/main/scala/slick/additions/AdditionsProfile.scala
index 4417658..878e3c5 100644
--- a/src/main/scala/slick/additions/AdditionsProfile.scala
+++ b/src/main/scala/slick/additions/AdditionsProfile.scala
@@ -42,7 +42,7 @@ trait AdditionsProfile { this: JdbcProfile =>
       def Ent(v: Value) = new KeylessEntity[Key, Value](v)
 
       @deprecated("Using key in an EntityTable is unsupported and may lead to crashes", "0.13.0")
-      override def key = super.key
+      override def key = lookup.asColumnOf[Key]
 
       def tableQuery: Query[EntityTable[K, V], this.KEnt, Seq]