diff --git a/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java b/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
index 2c3f77f..befeee0 100644
--- a/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
+++ b/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
@@ -16,17 +16,36 @@
 package com.android.quickstep;
 
 import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.UserManager;
+import android.util.Log;
 
+import com.android.launcher3.BuildConfig;
 import com.android.launcher3.MainProcessInitializer;
 import com.android.systemui.shared.system.ThreadedRendererCompat;
 
 @SuppressWarnings("unused")
 public class QuickstepProcessInitializer extends MainProcessInitializer {
 
+    private static final String TAG = "QuickstepProcessInitializer";
+
     public QuickstepProcessInitializer(Context context) { }
 
     @Override
     protected void init(Context context) {
+        // Workaround for b/120550382, an external app can cause the launcher process to start for
+        // a work profile user which we do not support. Disable the application immediately when we
+        // detect this to be the case.
+        UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        if (um.isManagedProfile()) {
+            PackageManager pm = context.getPackageManager();
+            pm.setApplicationEnabledSetting(context.getPackageName(),
+                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 0 /* flags */);
+            Log.w(TAG, "Disabling " + BuildConfig.APPLICATION_ID
+                    + ", unable to run in a managed profile");
+            return;
+        }
+
         super.init(context);
 
         // Elevate GPU priority for Quickstep and Remote animations.