diff --git a/client/diskusage.go b/client/diskusage.go
index 0560b0eb2..f67cadc8c 100644
--- a/client/diskusage.go
+++ b/client/diskusage.go
@@ -25,7 +25,7 @@ type UsageInfo struct {
 func (c *Client) DiskUsage(ctx context.Context, opts ...DiskUsageOption) ([]*UsageInfo, error) {
 	info := &DiskUsageInfo{}
 	for _, o := range opts {
-		o(info)
+		o.SetDiskUsageOption(info)
 	}
 
 	req := &controlapi.DiskUsageRequest{Filter: info.Filter}
@@ -60,14 +60,10 @@ func (c *Client) DiskUsage(ctx context.Context, opts ...DiskUsageOption) ([]*Usa
 	return du, nil
 }
 
-type DiskUsageOption func(*DiskUsageInfo)
+type DiskUsageOption interface {
+	SetDiskUsageOption(*DiskUsageInfo)
+}
 
 type DiskUsageInfo struct {
 	Filter []string
 }
-
-func WithFilter(f []string) DiskUsageOption {
-	return func(di *DiskUsageInfo) {
-		di.Filter = f
-	}
-}
diff --git a/client/filter.go b/client/filter.go
new file mode 100644
index 000000000..b05fe59d0
--- /dev/null
+++ b/client/filter.go
@@ -0,0 +1,19 @@
+package client
+
+func WithFilter(f []string) Filter {
+	return Filter(f)
+}
+
+type Filter []string
+
+func (f Filter) SetDiskUsageOption(di *DiskUsageInfo) {
+	di.Filter = f
+}
+
+func (f Filter) SetPruneOption(pi *PruneInfo) {
+	pi.Filter = f
+}
+
+func (f Filter) SetListWorkersOption(lwi *ListWorkersInfo) {
+	lwi.Filter = f
+}
diff --git a/client/prune.go b/client/prune.go
index b3c1edcd2..a5e581a3b 100644
--- a/client/prune.go
+++ b/client/prune.go
@@ -11,10 +11,10 @@ import (
 func (c *Client) Prune(ctx context.Context, ch chan UsageInfo, opts ...PruneOption) error {
 	info := &PruneInfo{}
 	for _, o := range opts {
-		o(info)
+		o.SetPruneOption(info)
 	}
 
-	req := &controlapi.PruneRequest{}
+	req := &controlapi.PruneRequest{Filter: info.Filter}
 	cl, err := c.controlClient().Prune(ctx, req)
 	if err != nil {
 		return errors.Wrap(err, "failed to call prune")
@@ -44,7 +44,10 @@ func (c *Client) Prune(ctx context.Context, ch chan UsageInfo, opts ...PruneOpti
 	}
 }
 
-type PruneOption func(*PruneInfo)
+type PruneOption interface {
+	SetPruneOption(*PruneInfo)
+}
 
 type PruneInfo struct {
+	Filter []string
 }
diff --git a/client/workers.go b/client/workers.go
index e70dcbc60..a86829255 100644
--- a/client/workers.go
+++ b/client/workers.go
@@ -18,7 +18,7 @@ type WorkerInfo struct {
 func (c *Client) ListWorkers(ctx context.Context, opts ...ListWorkersOption) ([]*WorkerInfo, error) {
 	info := &ListWorkersInfo{}
 	for _, o := range opts {
-		o(info)
+		o.SetListWorkersOption(info)
 	}
 
 	req := &controlapi.ListWorkersRequest{Filter: info.Filter}
@@ -40,14 +40,10 @@ func (c *Client) ListWorkers(ctx context.Context, opts ...ListWorkersOption) ([]
 	return wi, nil
 }
 
-type ListWorkersOption func(*ListWorkersInfo)
+type ListWorkersOption interface {
+	SetListWorkersOption(*ListWorkersInfo)
+}
 
 type ListWorkersInfo struct {
 	Filter []string
 }
-
-func WithWorkerFilter(f []string) ListWorkersOption {
-	return func(wi *ListWorkersInfo) {
-		wi.Filter = f
-	}
-}
diff --git a/cmd/buildctl/debug/workers.go b/cmd/buildctl/debug/workers.go
index e6cf97df8..11f85533d 100644
--- a/cmd/buildctl/debug/workers.go
+++ b/cmd/buildctl/debug/workers.go
@@ -40,7 +40,7 @@ func listWorkers(clicontext *cli.Context) error {
 		return err
 	}
 
-	workers, err := c.ListWorkers(commandContext(clicontext), client.WithWorkerFilter(clicontext.StringSlice("filter")))
+	workers, err := c.ListWorkers(commandContext(clicontext), client.WithFilter(clicontext.StringSlice("filter")))
 	if err != nil {
 		return err
 	}
diff --git a/cmd/buildctl/prune.go b/cmd/buildctl/prune.go
index 3dda41b66..c0ec4b5e5 100644
--- a/cmd/buildctl/prune.go
+++ b/cmd/buildctl/prune.go
@@ -15,6 +15,10 @@ var pruneCommand = cli.Command{
 	Usage:  "clean up build cache",
 	Action: prune,
 	Flags: []cli.Flag{
+		cli.StringSliceFlag{
+			Name:  "filter, f",
+			Usage: "Filter records",
+		},
 		cli.BoolFlag{
 			Name:  "verbose, v",
 			Usage: "Verbose output",
@@ -52,7 +56,7 @@ func prune(clicontext *cli.Context) error {
 		}
 	}()
 
-	err = c.Prune(commandContext(clicontext), ch)
+	err = c.Prune(commandContext(clicontext), ch, client.WithFilter(clicontext.StringSlice("filter")))
 	close(ch)
 	<-printed
 	if err != nil {