diff --git a/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java b/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
index 704d1e5ee10..7c55b516dbf 100644
--- a/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
+++ b/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
@@ -182,10 +182,10 @@ public class PermissionBarChartPreferenceController extends BasePreferenceContro
         return barViewInfos;
     }
 
-    private Drawable getPermissionGroupIcon(CharSequence permissionGroup) {
+    private Drawable getPermissionGroupIcon(String permissionGroup) {
         Drawable icon = null;
         try {
-            icon = mPackageManager.getPermissionGroupInfo(permissionGroup.toString(), 0)
+            icon = mPackageManager.getPermissionGroupInfo(permissionGroup, 0)
                     .loadIcon(mPackageManager);
             icon.setTintList(Utils.getColorAttr(mContext, android.R.attr.textColorSecondary));
         } catch (PackageManager.NameNotFoundException e) {
@@ -195,10 +195,10 @@ public class PermissionBarChartPreferenceController extends BasePreferenceContro
         return icon;
     }
 
-    private CharSequence getPermissionGroupLabel(CharSequence permissionGroup) {
+    private CharSequence getPermissionGroupLabel(String permissionGroup) {
         CharSequence label = null;
         try {
-            label = mPackageManager.getPermissionGroupInfo(permissionGroup.toString(), 0)
+            label = mPackageManager.getPermissionGroupInfo(permissionGroup, 0)
                     .loadLabel(mPackageManager);
         } catch (PackageManager.NameNotFoundException e) {
             Log.w(TAG, "Cannot find group label for " + permissionGroup, e);