diff --git a/dexpreopt/dexpreopt.go b/dexpreopt/dexpreopt.go
index d8011d69f..fdfd22e1b 100644
--- a/dexpreopt/dexpreopt.go
+++ b/dexpreopt/dexpreopt.go
@@ -201,6 +201,11 @@ func GetSystemServerDexLocation(ctx android.PathContext, global *GlobalConfig, l
 	if apex := global.AllApexSystemServerJars(ctx).ApexOfJar(lib); apex != "" {
 		return fmt.Sprintf("/apex/%s/javalib/%s.jar", apex, lib)
 	}
+
+	if apex := global.AllPlatformSystemServerJars(ctx).ApexOfJar(lib); apex == "system_ext" {
+		return fmt.Sprintf("/system_ext/framework/%s.jar", lib)
+	}
+
 	return fmt.Sprintf("/system/framework/%s.jar", lib)
 }
 
diff --git a/dexpreopt/dexpreopt_test.go b/dexpreopt/dexpreopt_test.go
index 07e4fad01..429b5ff1e 100644
--- a/dexpreopt/dexpreopt_test.go
+++ b/dexpreopt/dexpreopt_test.go
@@ -59,6 +59,15 @@ func testPlatformSystemServerModuleConfig(ctx android.PathContext, name string)
 		android.PathForOutput(ctx, fmt.Sprintf("%s/enforce_uses_libraries.status", name)))
 }
 
+func testSystemExtSystemServerModuleConfig(ctx android.PathContext, name string) *ModuleConfig {
+	return createTestModuleConfig(
+		name,
+		fmt.Sprintf("/system_ext/framework/%s.jar", name),
+		android.PathForOutput(ctx, fmt.Sprintf("%s/dexpreopt/%s.jar", name, name)),
+		android.PathForOutput(ctx, fmt.Sprintf("%s/aligned/%s.jar", name, name)),
+		android.PathForOutput(ctx, fmt.Sprintf("%s/enforce_uses_libraries.status", name)))
+}
+
 func createTestModuleConfig(name, dexLocation string, buildPath, dexPath, enforceUsesLibrariesStatusFile android.OutputPath) *ModuleConfig {
 	return &ModuleConfig{
 		Name:                            name,
@@ -213,6 +222,29 @@ func TestDexPreoptStandaloneSystemServerJars(t *testing.T) {
 	android.AssertStringEquals(t, "installs", wantInstalls.String(), rule.Installs().String())
 }
 
+func TestDexPreoptSystemExtSystemServerJars(t *testing.T) {
+	config := android.TestConfig("out", nil, "", nil)
+	ctx := android.BuilderContextForTesting(config)
+	globalSoong := globalSoongConfigForTests()
+	global := GlobalConfigForTests(ctx)
+	module := testSystemExtSystemServerModuleConfig(ctx, "service-A")
+
+	global.StandaloneSystemServerJars = android.CreateTestConfiguredJarList(
+		[]string{"system_ext:service-A"})
+
+	rule, err := GenerateDexpreoptRule(ctx, globalSoong, global, module)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	wantInstalls := android.RuleBuilderInstalls{
+		{android.PathForOutput(ctx, "service-A/dexpreopt/oat/arm/javalib.odex"), "/system_ext/framework/oat/arm/service-A.odex"},
+		{android.PathForOutput(ctx, "service-A/dexpreopt/oat/arm/javalib.vdex"), "/system_ext/framework/oat/arm/service-A.vdex"},
+	}
+
+	android.AssertStringEquals(t, "installs", wantInstalls.String(), rule.Installs().String())
+}
+
 func TestDexPreoptApexStandaloneSystemServerJars(t *testing.T) {
 	config := android.TestConfig("out", nil, "", nil)
 	ctx := android.BuilderContextForTesting(config)