diff --git a/cmd/rauc-custom-boot-handler/cmd.go b/cmd/rauc-custom-boot-handler/cmd.go
index 7c73a4fce73fb5295c96535468349411fa8563ba..2c97ad242536699dbe74064449a56565ca231841 100644
--- a/cmd/rauc-custom-boot-handler/cmd.go
+++ b/cmd/rauc-custom-boot-handler/cmd.go
@@ -129,7 +129,7 @@ func (cmd setPrimarySlotCmd) OneLiner() string {
 	return "set the name of the primary slot"
 }
 
-func (cmd setPrimarySlotCmd) Run(ctx context.Context, args []string) error {
+func (cmd setPrimarySlotCmd) Run(_ context.Context, args []string) error {
 	var slot boot.Slot
 
 	switch len(args) {
@@ -192,7 +192,7 @@ func (cmd setSlotStateCmd) OneLiner() string {
 	return "set the state of a given slot"
 }
 
-func (cmd setSlotStateCmd) Run(ctx context.Context, args []string) error {
+func (cmd setSlotStateCmd) Run(_ context.Context, args []string) error {
 	var slot boot.Slot
 
 	var state boot.SlotState
diff --git a/cmd/rauc-custom-boot-handler/cmd_test.go b/cmd/rauc-custom-boot-handler/cmd_test.go
index f465f64798a2810e605a52b22abaf83ab15d4f32..bd4a3553014c7e4780f22673276ebd476f5c875f 100644
--- a/cmd/rauc-custom-boot-handler/cmd_test.go
+++ b/cmd/rauc-custom-boot-handler/cmd_test.go
@@ -61,7 +61,7 @@ func (s *cmdSuite) EnsureConn(c *C) *dbus.Conn {
 	return s.conn
 }
 
-func (s *cmdSuite) SetUpTest(c *C) {
+func (s *cmdSuite) SetUpTest(_ *C) {
 	s.handler.ResetCallbacks()
 }
 
@@ -178,7 +178,7 @@ type suiteBase struct {
 	cmd     cmdr.Cmd
 }
 
-func (s *suiteBase) SetUpTest(c *C) {
+func (s *suiteBase) SetUpTest(_ *C) {
 	s.handler.ResetCallbacks()
 	s.cmd = rauccustomboothandler.InterfaceCmd{&s.handler}
 }
diff --git a/cmd/rauc-post-install-handler/cmd.go b/cmd/rauc-post-install-handler/cmd.go
index c15097371cfad62cb502526297ac22aa296bd854..983d7edadb5a44656022a8b8ecc4757578ee865c 100644
--- a/cmd/rauc-post-install-handler/cmd.go
+++ b/cmd/rauc-post-install-handler/cmd.go
@@ -32,7 +32,7 @@ func (cmd Cmd) OneLiner() string {
 }
 
 // Run constructs handler context and invokes the post-install method over D-Bus.
-func (cmd Cmd) Run(ctx context.Context, args []string) error {
+func (cmd Cmd) Run(_ context.Context, _ []string) error {
 	return installdbus.Do(func(client *installdbus.Client, env *installhandler.Environment) error {
 		return client.PostInstall(env)
 	})
diff --git a/cmd/rauc-post-install-handler/cmd_test.go b/cmd/rauc-post-install-handler/cmd_test.go
index 184c81519a7bd88c3dac285a9c8b2b6e24cf70b6..808bbdfa6f88d6ef80663e1413bbc22bf20a3993 100644
--- a/cmd/rauc-post-install-handler/cmd_test.go
+++ b/cmd/rauc-post-install-handler/cmd_test.go
@@ -34,7 +34,7 @@ type cmdSuite struct {
 
 var _ = Suite(&cmdSuite{})
 
-func (s *cmdSuite) SetUpTest(c *C) {
+func (s *cmdSuite) SetUpTest(_ *C) {
 	s.cmd = raucpostinstallhandler.Cmd{}
 }
 
diff --git a/cmd/rauc-pre-install-handler/cmd.go b/cmd/rauc-pre-install-handler/cmd.go
index 54aca4626296754a8dacd0f6ca248becb270ff09..438f0febad81426f8ffc88dfab495d42ca9afe62 100644
--- a/cmd/rauc-pre-install-handler/cmd.go
+++ b/cmd/rauc-pre-install-handler/cmd.go
@@ -32,7 +32,7 @@ func (cmd Cmd) OneLiner() string {
 }
 
 // Run constructs handler context and invokes the pre-install method over D-Bus.
-func (cmd Cmd) Run(ctx context.Context, args []string) error {
+func (cmd Cmd) Run(_ context.Context, _ []string) error {
 	return installdbus.Do(func(client *installdbus.Client, env *installhandler.Environment) error {
 		return client.PreInstall(env)
 	})
diff --git a/cmd/rauc-pre-install-handler/cmd_test.go b/cmd/rauc-pre-install-handler/cmd_test.go
index 4de920020d9c0c7901616aa32ca2e91a394d893f..03c655ec2ff25fa69e6be99de493b18359313e04 100644
--- a/cmd/rauc-pre-install-handler/cmd_test.go
+++ b/cmd/rauc-pre-install-handler/cmd_test.go
@@ -34,7 +34,7 @@ type cmdSuite struct {
 
 var _ = Suite(&cmdSuite{})
 
-func (s *cmdSuite) SetUpTest(c *C) {
+func (s *cmdSuite) SetUpTest(_ *C) {
 	s.cmd = raucpreinstallhandler.Cmd{}
 }
 
diff --git a/cmd/sysota-mux/main_test.go b/cmd/sysota-mux/main_test.go
index f8d28f0f77794fc963d02193407e58aa72fc5005..a2d8e461ed00823d61a47961fb5623897593d072 100644
--- a/cmd/sysota-mux/main_test.go
+++ b/cmd/sysota-mux/main_test.go
@@ -16,6 +16,6 @@ type mainSuite struct{}
 
 var _ = Suite(&mainSuite{})
 
-func (s *mainSuite) TestMain(c *C) {
+func (s *mainSuite) TestMain(_ *C) {
 	main.Main()
 }
diff --git a/cmd/sysotactl/cmd_test.go b/cmd/sysotactl/cmd_test.go
index 83f94b3071e420af79787c4a6f77c47ef13aa568..0f24e6c28153b5a0d4e41d27210594181b30b085 100644
--- a/cmd/sysotactl/cmd_test.go
+++ b/cmd/sysotactl/cmd_test.go
@@ -97,7 +97,7 @@ func (s *cmdSuite) TearDownSuite(c *C) {
 	s.Suite.TearDownSuite(c)
 }
 
-func (s *cmdSuite) SetUpTest(c *C) {
+func (s *cmdSuite) SetUpTest(_ *C) {
 	s.m.Lock()
 	defer s.m.Unlock()
 
diff --git a/cmd/sysotad/service_test.go b/cmd/sysotad/service_test.go
index dcd549d7f499db13570165d913ffddf6dd7c46fd..9d5c1c0ae4eb1518ecd95c85b3ccc90defb28cac 100644
--- a/cmd/sysotad/service_test.go
+++ b/cmd/sysotad/service_test.go
@@ -61,7 +61,7 @@ func (s *serviceSuite) EnsureService(c *C) {
 	}
 }
 
-func (s *serviceSuite) SetUpTest(c *C) {
+func (s *serviceSuite) SetUpTest(_ *C) {
 	s.config = ota.Config{}
 	s.state = ota.SystemState{}
 }
diff --git a/cmd/sysotad/sysotad.go b/cmd/sysotad/sysotad.go
index a282ef6af113fcb5f8fbe577d80266a0eeb8474a..65d02446592bc2e05f0fedc16d42a59943cd44ad 100644
--- a/cmd/sysotad/sysotad.go
+++ b/cmd/sysotad/sysotad.go
@@ -47,7 +47,7 @@ func (Cmd) OneLiner() string {
 }
 
 // Run implements the sysotad binary.
-func (cmd *Cmd) Run(ctx context.Context, args []string) (err error) {
+func (cmd *Cmd) Run(ctx context.Context, _ []string) (err error) {
 	_, stdout, _ := cmdr.Stdio(ctx)
 
 	// Connect to the system bus and defer disconnect on return.
diff --git a/rauc/installhandler/installdbus/client_test.go b/rauc/installhandler/installdbus/client_test.go
index d663d3861592e945f934a1a05f4feccc49624bcd..0f1d0eb0245eecc27d185a3563ebfe8b3c95e7a1 100644
--- a/rauc/installhandler/installdbus/client_test.go
+++ b/rauc/installhandler/installdbus/client_test.go
@@ -35,7 +35,7 @@ type clientSuite struct {
 
 var _ = Suite(&clientSuite{})
 
-func (s *clientSuite) SetUpTest(c *C) {
+func (s *clientSuite) SetUpTest(_ *C) {
 	s.handler.ResetCallbacks()
 }