diff --git a/src/cmd/compile/internal/types2/infer.go b/src/cmd/compile/internal/types2/infer.go
index 156c2290f7..494e896ee9 100644
--- a/src/cmd/compile/internal/types2/infer.go
+++ b/src/cmd/compile/internal/types2/infer.go
@@ -218,7 +218,7 @@ func (check *Checker) infer(pos syntax.Pos, tparams []*TypeParam, targs []Type,
 	// At least one type argument couldn't be inferred.
 	assert(targs != nil && index >= 0 && targs[index] == nil)
 	tpar := tparams[index]
-	check.errorf(pos, "cannot infer %s (%s) (%s)", tpar.obj.name, tpar.obj.pos, targs)
+	check.errorf(pos, "cannot infer %s (%s)", tpar.obj.name, tpar.obj.pos)
 	return nil
 }
 
diff --git a/src/go/types/infer.go b/src/go/types/infer.go
index 3348c29476..43b9af348e 100644
--- a/src/go/types/infer.go
+++ b/src/go/types/infer.go
@@ -214,7 +214,7 @@ func (check *Checker) infer(posn positioner, tparams []*TypeParam, targs []Type,
 	// At least one type argument couldn't be inferred.
 	assert(index >= 0 && targs[index] == nil)
 	tpar := tparams[index]
-	check.errorf(posn, _Todo, "cannot infer %s (%v) (%v)", tpar.obj.name, tpar.obj.pos, targs)
+	check.errorf(posn, _Todo, "cannot infer %s (%v)", tpar.obj.name, tpar.obj.pos)
 	return nil
 }