diff --git a/subcommand/lifecycle-sidecar/command_ent_test.go b/subcommand/lifecycle-sidecar/command_ent_test.go
index 2a945f2352..78075509b6 100644
--- a/subcommand/lifecycle-sidecar/command_ent_test.go
+++ b/subcommand/lifecycle-sidecar/command_ent_test.go
@@ -4,6 +4,7 @@ package subcommand
 
 import (
 	"os"
+	"syscall"
 	"testing"
 	"time"
 
@@ -35,7 +36,7 @@ func TestRun_ServicesRegistration_Namespaces(t *testing.T) {
 		"-service-config", configFile,
 		"-sync-period", "100ms",
 	})
-	defer stopCommand(t, &cmd, exitChan)
+	defer stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	client, err := api.NewClient(&api.Config{
 		Address: a.HTTPAddr,
diff --git a/subcommand/sync-catalog/command.go b/subcommand/sync-catalog/command.go
index 9f0f9a0332..aba6f389e4 100644
--- a/subcommand/sync-catalog/command.go
+++ b/subcommand/sync-catalog/command.go
@@ -381,7 +381,11 @@ func (c *Command) Help() string {
 // interrupt sends os.Interrupt signal to the command
 // so it can exit gracefully. This function is needed for tests
 func (c *Command) interrupt() {
-	c.sigCh <- os.Interrupt
+	c.sendSignal(syscall.SIGINT)
+}
+
+func (c *Command) sendSignal(sig os.Signal) {
+	c.sigCh <- sig
 }
 
 func (c *Command) validateFlags() error {
diff --git a/subcommand/sync-catalog/command_ent_test.go b/subcommand/sync-catalog/command_ent_test.go
index 80af158ea4..8c1eaba726 100644
--- a/subcommand/sync-catalog/command_ent_test.go
+++ b/subcommand/sync-catalog/command_ent_test.go
@@ -6,6 +6,7 @@ import (
 	"context"
 	"fmt"
 	"strings"
+	"syscall"
 	"testing"
 	"time"
 
@@ -87,7 +88,7 @@ func TestRun_ToConsulSingleDestinationNamespace(t *testing.T) {
 				"-allow-k8s-namespace=*",
 				"-add-k8s-namespace-suffix=false",
 			})
-			defer stopCommand(tt, &cmd, exitChan)
+			defer stopCommand(tt, &cmd, exitChan, syscall.SIGINT)
 
 			timer := &retry.Timer{Timeout: 10 * time.Second, Wait: 500 * time.Millisecond}
 			retry.RunWith(timer, tt, func(r *retry.R) {
@@ -226,7 +227,7 @@ func TestRun_ToConsulMirroringNamespaces(t *testing.T) {
 				"-k8s-namespace-mirroring-prefix", c.MirroringPrefix,
 			}, c.ExtraFlags...)
 			exitChan := runCommandAsynchronously(&cmd, args)
-			defer stopCommand(tt, &cmd, exitChan)
+			defer stopCommand(tt, &cmd, exitChan, syscall.SIGINT)
 
 			timer := &retry.Timer{Timeout: 10 * time.Second, Wait: 500 * time.Millisecond}
 			retry.RunWith(timer, tt, func(r *retry.R) {
@@ -512,7 +513,7 @@ func TestRun_ToConsulChangingNamespaceFlags(t *testing.T) {
 						require.Equal(r, instances[0].ServiceName, svcName)
 					}
 				})
-				stopCommand(tt, &firstCmd, exitChan)
+				stopCommand(tt, &firstCmd, exitChan, syscall.SIGINT)
 			}
 			tt.Log("first command run complete")
 
@@ -528,7 +529,7 @@ func TestRun_ToConsulChangingNamespaceFlags(t *testing.T) {
 					}),
 				}
 				exitChan := runCommandAsynchronously(&secondCmd, append(commonArgs, c.SecondRunFlags...))
-				defer stopCommand(tt, &secondCmd, exitChan)
+				defer stopCommand(tt, &secondCmd, exitChan, syscall.SIGINT)
 
 				// Wait until the expected services are synced and the old ones
 				// deleted.
@@ -693,7 +694,7 @@ func TestRun_ToConsulNamespacesACLs(t *testing.T) {
 				"-consul-cross-namespace-acl-policy=cross-namespace-policy",
 			}
 			exitChan := runCommandAsynchronously(&cmd, append(commonArgs, c.Flags...))
-			defer stopCommand(tt, &cmd, exitChan)
+			defer stopCommand(tt, &cmd, exitChan, syscall.SIGINT)
 
 			// Check the namespaces are created correctly
 			timer = &retry.Timer{Timeout: 10 * time.Second, Wait: 500 * time.Millisecond}
diff --git a/subcommand/sync-catalog/command_test.go b/subcommand/sync-catalog/command_test.go
index 3c62a2b68b..6144d05e91 100644
--- a/subcommand/sync-catalog/command_test.go
+++ b/subcommand/sync-catalog/command_test.go
@@ -2,6 +2,8 @@ package synccatalog
 
 import (
 	"context"
+	"os"
+	"syscall"
 	"testing"
 	"time"
 
@@ -70,7 +72,7 @@ func TestRun_Defaults_SyncsConsulServiceToK8s(t *testing.T) {
 	exitChan := runCommandAsynchronously(&cmd, []string{
 		"-http-addr", testServer.HTTPAddr,
 	})
-	defer stopCommand(t, &cmd, exitChan)
+	defer stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	retry.Run(t, func(r *retry.R) {
 		serviceList, err := k8s.CoreV1().Services(metav1.NamespaceDefault).List(context.Background(), metav1.ListOptions{})
@@ -81,6 +83,35 @@ func TestRun_Defaults_SyncsConsulServiceToK8s(t *testing.T) {
 	})
 }
 
+// Test that the command exits cleanly on signals
+func TestRun_ExitCleanlyOnSignals(t *testing.T) {
+	t.Run("SIGINT", testSignalHandling(syscall.SIGINT))
+	t.Run("SIGTERM", testSignalHandling(syscall.SIGTERM))
+}
+
+func testSignalHandling(sig os.Signal) func(*testing.T) {
+	return func(t *testing.T) {
+		k8s, testServer := completeSetup(t)
+		defer testServer.Stop()
+
+		// Run the command.
+		ui := cli.NewMockUi()
+		cmd := Command{
+			UI:        ui,
+			clientset: k8s,
+			logger: hclog.New(&hclog.LoggerOptions{
+				Name:  t.Name(),
+				Level: hclog.Debug,
+			}),
+		}
+
+		exitChan := runCommandAsynchronously(&cmd, []string{
+			"-http-addr", testServer.HTTPAddr,
+		})
+		defer stopCommand(t, &cmd, exitChan, sig)
+	}
+}
+
 // Test that when -add-k8s-namespace-suffix flag is used
 // k8s namespaces are appended to the service names synced to Consul
 func TestRun_ToConsulWithAddK8SNamespaceSuffix(t *testing.T) {
@@ -116,7 +147,7 @@ func TestRun_ToConsulWithAddK8SNamespaceSuffix(t *testing.T) {
 		"-consul-write-interval", "100ms",
 		"-add-k8s-namespace-suffix",
 	})
-	defer stopCommand(t, &cmd, exitChan)
+	defer stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	retry.Run(t, func(r *retry.R) {
 		services, _, err := consulClient.Catalog().Services(nil)
@@ -167,14 +198,14 @@ func TestCommand_Run_ToConsulChangeAddK8SNamespaceSuffixToTrue(t *testing.T) {
 		require.Contains(r, services, "foo")
 	})
 
-	stopCommand(t, &cmd, exitChan)
+	stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	// restart sync with -add-k8s-namespace-suffix
 	exitChan = runCommandAsynchronously(&cmd, []string{
 		"-consul-write-interval", "100ms",
 		"-add-k8s-namespace-suffix",
 	})
-	defer stopCommand(t, &cmd, exitChan)
+	defer stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	// check that the name of the service is now namespaced
 	retry.Run(t, func(r *retry.R) {
@@ -223,7 +254,7 @@ func TestCommand_Run_ToConsulTwoServicesSameNameDifferentNamespace(t *testing.T)
 		"-consul-write-interval", "100ms",
 		"-add-k8s-namespace-suffix",
 	})
-	defer stopCommand(t, &cmd, exitChan)
+	defer stopCommand(t, &cmd, exitChan, syscall.SIGINT)
 
 	// check that the name of the service is namespaced
 	retry.Run(t, func(r *retry.R) {
@@ -333,7 +364,7 @@ func TestRun_ToConsulAllowDenyLists(t *testing.T) {
 				}),
 			}
 			exitChan := runCommandAsynchronously(&cmd, flags)
-			defer stopCommand(tt, &cmd, exitChan)
+			defer stopCommand(tt, &cmd, exitChan, syscall.SIGINT)
 
 			retry.Run(tt, func(r *retry.R) {
 				svcs, _, err := consulClient.Catalog().Services(nil)
@@ -488,7 +519,7 @@ func TestRun_ToConsulChangingFlags(t *testing.T) {
 						require.Equal(r, instances[0].ServiceName, svcName)
 					}
 				})
-				stopCommand(tt, &firstCmd, exitChan)
+				stopCommand(tt, &firstCmd, exitChan, syscall.SIGINT)
 			}
 			tt.Log("first command run complete")
 
@@ -504,7 +535,7 @@ func TestRun_ToConsulChangingFlags(t *testing.T) {
 					}),
 				}
 				exitChan := runCommandAsynchronously(&secondCmd, append(commonArgs, c.SecondRunFlags...))
-				defer stopCommand(tt, &secondCmd, exitChan)
+				defer stopCommand(tt, &secondCmd, exitChan, syscall.SIGINT)
 
 				// Wait until the expected services are synced and the old ones
 				// deleted.
@@ -559,9 +590,9 @@ func runCommandAsynchronously(cmd *Command, args []string) chan int {
 	return exitChan
 }
 
-func stopCommand(t *testing.T, cmd *Command, exitChan chan int) {
+func stopCommand(t *testing.T, cmd *Command, exitChan chan int, sig os.Signal) {
 	if len(exitChan) == 0 {
-		cmd.interrupt()
+		cmd.sendSignal(sig)
 	}
 	select {
 	case c := <-exitChan: