diff --git a/packages/SystemUI/proguard.flags b/packages/SystemUI/proguard.flags
index 030eaa6..5fc9193 100644
--- a/packages/SystemUI/proguard.flags
+++ b/packages/SystemUI/proguard.flags
@@ -21,12 +21,44 @@
 # TODO(b/264686688): Handle these cases with more targeted annotations.
 -keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
   private com.android.keyguard.KeyguardUpdateMonitorCallback *;
+  private com.android.systemui.privacy.PrivacyConfig$Callback *;
   private com.android.systemui.privacy.PrivacyItemController$Callback *;
   private com.android.systemui.settings.UserTracker$Callback *;
   private com.android.systemui.statusbar.phone.StatusBarWindowCallback *;
   private com.android.systemui.util.service.Observer$Callback *;
   private com.android.systemui.util.service.ObservableServiceConnection$Callback *;
 }
+# Note that these rules are temporary companions to the above rules, required
+# for cases like Kotlin where fields with anonymous types use the anonymous type
+# rather than the supertype.
+-if class * extends com.android.keyguard.KeyguardUpdateMonitorCallback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.privacy.PrivacyConfig$Callback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.privacy.PrivacyItemController$Callback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.settings.UserTracker$Callback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.statusbar.phone.StatusBarWindowCallback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.util.service.Observer$Callback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
+-if class * extends com.android.systemui.util.service.ObservableServiceConnection$Callback
+-keepclassmembers,allowaccessmodification class com.android.systemui.**, com.android.keyguard.** {
+  <1> *;
+}
 
 -keepclasseswithmembers class * {
     public <init>(android.content.Context, android.util.AttributeSet);