diff --git a/apex/apex.go b/apex/apex.go
index 1e5cf91..a561cfa 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -1625,8 +1625,8 @@
 			proptools.StringDefault(a.properties.Apex_name, name), fi.installDir)
 		if a.properties.Flattened && apexType.image() {
 			// /system/apex/<name>/{lib|framework|...}
-			fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", filepath.Join("$(OUT_DIR)",
-				a.installDir.RelPathString(), name, fi.installDir))
+			fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", filepath.Join(a.installDir.ToMakePath().String(),
+				name, fi.installDir))
 			if !a.isFlattenedVariant() {
 				fmt.Fprintln(w, "LOCAL_SOONG_SYMBOL_PATH :=", pathWhenActivated)
 			}
@@ -1735,7 +1735,7 @@
 				fmt.Fprintln(w, "LOCAL_MODULE :=", name)
 				fmt.Fprintln(w, "LOCAL_MODULE_CLASS := ETC") // do we need a new class?
 				fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", a.outputFiles[apexType].String())
-				fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", filepath.Join("$(OUT_DIR)", a.installDir.RelPathString()))
+				fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", a.installDir.ToMakePath().String())
 				fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", name+apexType.suffix())
 				fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE :=", !a.installable())
 				if len(moduleNames) > 0 {
@@ -1746,7 +1746,7 @@
 				}
 				if a.prebuiltFileToDelete != "" {
 					fmt.Fprintln(w, "LOCAL_POST_INSTALL_CMD :=", "rm -rf "+
-						filepath.Join("$(OUT_DIR)", a.installDir.RelPathString(), a.prebuiltFileToDelete))
+						filepath.Join(a.installDir.ToMakePath().String(), a.prebuiltFileToDelete))
 				}
 				fmt.Fprintln(w, "include $(BUILD_PREBUILT)")
 
@@ -1987,7 +1987,7 @@
 		Include:    "$(BUILD_PREBUILT)",
 		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
 			func(entries *android.AndroidMkEntries) {
-				entries.SetString("LOCAL_MODULE_PATH", filepath.Join("$(OUT_DIR)", p.installDir.RelPathString()))
+				entries.SetString("LOCAL_MODULE_PATH", p.installDir.ToMakePath().String())
 				entries.SetString("LOCAL_MODULE_STEM", p.installFilename)
 				entries.SetBoolIfTrue("LOCAL_UNINSTALLABLE_MODULE", !p.installable())
 				entries.AddStrings("LOCAL_OVERRIDES_PACKAGES", p.properties.Overrides...)
diff --git a/apex/apex_test.go b/apex/apex_test.go
index ecfa46f..b4516bd 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -1382,6 +1382,7 @@
 			vndk: {
 				enabled: true,
 			},
+			target_arch: "arm64",
 			srcs: ["libvndk27.so"],
 		}
 	`, withFiles(map[string][]byte{
@@ -1864,8 +1865,8 @@
 	`)
 
 	apex := ctx.ModuleForTests("myapex", "android_common_myapex").Module().(*apexBundle)
-	expected := "target/product/test_device/product/apex"
-	actual := apex.installDir.RelPathString()
+	expected := buildDir + "/target/product/test_device/product/apex"
+	actual := apex.installDir.String()
 	if actual != expected {
 		t.Errorf("wrong install path. expected %q. actual %q", expected, actual)
 	}