diff --git a/cli/command/volume/prune_test.go b/cli/command/volume/prune_test.go
index c02a3be0b6..5a0a2ba5b3 100644
--- a/cli/command/volume/prune_test.go
+++ b/cli/command/volume/prune_test.go
@@ -169,7 +169,7 @@ func TestVolumePrunePromptNo(t *testing.T) {
 	}
 }
 
-func simplePruneFunc(args filters.Args) (types.VolumesPruneReport, error) {
+func simplePruneFunc(filters.Args) (types.VolumesPruneReport, error) {
 	return types.VolumesPruneReport{
 		VolumesDeleted: []string{
 			"foo", "bar", "baz",