diff --git a/src/cmd/compile/internal/types2/typeparam.go b/src/cmd/compile/internal/types2/typeparam.go
index 9f8c921bf1..2614f467b1 100644
--- a/src/cmd/compile/internal/types2/typeparam.go
+++ b/src/cmd/compile/internal/types2/typeparam.go
@@ -108,7 +108,6 @@ func (tps *TypeParams) Len() int {
 }
 
 // At returns the i'th type parameter in the list.
-// It is safe to call on a nil receiver.
 func (tps *TypeParams) At(i int) *TypeName {
 	return tps.list()[i]
 }
diff --git a/src/go/types/typeparam.go b/src/go/types/typeparam.go
index 8c18b52a9a..a3d60c1648 100644
--- a/src/go/types/typeparam.go
+++ b/src/go/types/typeparam.go
@@ -98,7 +98,6 @@ func (tps *TypeParams) Len() int {
 }
 
 // At returns the i'th type parameter in the list.
-// It is safe to call on a nil receiver.
 func (tps *TypeParams) At(i int) *TypeName {
 	return tps.list()[i]
 }