diff --git a/client/client.go b/client/client.go
index 0ed884d9b..d959d7b9c 100644
--- a/client/client.go
+++ b/client/client.go
@@ -102,6 +102,12 @@ type Client interface {
 	// the prior history.
 	BuildFork(string, string, int, map[string]string) (*model.Build, error)
 
+	// BuildApprove approves a blocked build.
+	BuildApprove(string, string, int) (*model.Build, error)
+
+	// BuildDecline declines a blocked build.
+	BuildDecline(string, string, int) (*model.Build, error)
+
 	// BuildLogs returns the build logs for the specified job.
 	BuildLogs(string, string, int, int) (io.ReadCloser, error)
 
diff --git a/client/client_impl.go b/client/client_impl.go
index 182bc7e0d..0f316797c 100644
--- a/client/client_impl.go
+++ b/client/client_impl.go
@@ -34,6 +34,8 @@ const (
 	pathEncrypt       = "%s/api/repos/%s/%s/encrypt"
 	pathBuilds        = "%s/api/repos/%s/%s/builds"
 	pathBuild         = "%s/api/repos/%s/%s/builds/%v"
+	pathApprove       = "%s/api/repos/%s/%s/builds/%d/approve"
+	pathDecline       = "%s/api/repos/%s/%s/builds/%d/decline"
 	pathJob           = "%s/api/repos/%s/%s/builds/%d/%d"
 	pathLog           = "%s/api/repos/%s/%s/logs/%d/%d"
 	pathKey           = "%s/api/repos/%s/%s/key"
@@ -257,6 +259,22 @@ func (c *client) BuildFork(owner, name string, num int, params map[string]string
 	return out, err
 }
 
+// BuildApprove approves a blocked build.
+func (c *client) BuildApprove(owner, name string, num int) (*model.Build, error) {
+	out := new(model.Build)
+	uri := fmt.Sprintf(pathApprove, c.base, owner, name, num)
+	err := c.post(uri, nil, out)
+	return out, err
+}
+
+// BuildDecline declines a blocked build.
+func (c *client) BuildDecline(owner, name string, num int) (*model.Build, error) {
+	out := new(model.Build)
+	uri := fmt.Sprintf(pathDecline, c.base, owner, name, num)
+	err := c.post(uri, nil, out)
+	return out, err
+}
+
 // BuildLogs returns the build logs for the specified job.
 func (c *client) BuildLogs(owner, name string, num, job int) (io.ReadCloser, error) {
 	uri := fmt.Sprintf(pathLog, c.base, owner, name, num, job)
diff --git a/drone/build.go b/drone/build.go
index 65c1ece14..78572952f 100644
--- a/drone/build.go
+++ b/drone/build.go
@@ -12,6 +12,8 @@ var buildCmd = cli.Command{
 		buildInfoCmd,
 		buildStopCmd,
 		buildStartCmd,
+		buildApproveCmd,
+		buildDeclineCmd,
 		buildQueueCmd,
 	},
 }
diff --git a/drone/build_approve.go b/drone/build_approve.go
new file mode 100644
index 000000000..a9dfff482
--- /dev/null
+++ b/drone/build_approve.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/urfave/cli"
+)
+
+var buildApproveCmd = cli.Command{
+	Name:   "approve",
+	Usage:  "approve a build",
+	Action: buildApprove,
+}
+
+func buildApprove(c *cli.Context) (err error) {
+	repo := c.Args().First()
+	owner, name, err := parseRepo(repo)
+	if err != nil {
+		return err
+	}
+	number, err := strconv.Atoi(c.Args().Get(1))
+	if err != nil {
+		return err
+	}
+
+	client, err := newClient(c)
+	if err != nil {
+		return err
+	}
+
+	_, err = client.BuildApprove(owner, name, number)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Approving build %s/%s#%d\n", owner, name, number)
+	return nil
+}
diff --git a/drone/build_decline.go b/drone/build_decline.go
new file mode 100644
index 000000000..fb4ce35d3
--- /dev/null
+++ b/drone/build_decline.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/urfave/cli"
+)
+
+var buildDeclineCmd = cli.Command{
+	Name:   "decline",
+	Usage:  "decline a build",
+	Action: buildDecline,
+}
+
+func buildDecline(c *cli.Context) (err error) {
+	repo := c.Args().First()
+	owner, name, err := parseRepo(repo)
+	if err != nil {
+		return err
+	}
+	number, err := strconv.Atoi(c.Args().Get(1))
+	if err != nil {
+		return err
+	}
+
+	client, err := newClient(c)
+	if err != nil {
+		return err
+	}
+
+	_, err = client.BuildDecline(owner, name, number)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Declining build %s/%s#%d\n", owner, name, number)
+	return nil
+}