diff --git a/runtime/native/dalvik_system_ZygoteHooks.cc b/runtime/native/dalvik_system_ZygoteHooks.cc
index c010082..c37b8bb 100644
--- a/runtime/native/dalvik_system_ZygoteHooks.cc
+++ b/runtime/native/dalvik_system_ZygoteHooks.cc
@@ -311,7 +311,7 @@
   }
 
   if ((runtime_flags & ONLY_USE_SYSTEM_OAT_FILES) != 0 || is_system_server) {
-    runtime->GetOatFileManager().SetOnlyUseSystemOatFiles(!is_system_server);
+    runtime->GetOatFileManager().SetOnlyUseSystemOatFiles();
     runtime_flags &= ~ONLY_USE_SYSTEM_OAT_FILES;
   }
 
diff --git a/runtime/oat_file_manager.cc b/runtime/oat_file_manager.cc
index 3839dca..22ebc73 100644
--- a/runtime/oat_file_manager.cc
+++ b/runtime/oat_file_manager.cc
@@ -1037,18 +1037,17 @@
   }
 }
 
-void OatFileManager::SetOnlyUseSystemOatFiles(bool assert_no_files_loaded) {
+void OatFileManager::SetOnlyUseSystemOatFiles() {
   ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_);
-  if (assert_no_files_loaded) {
-    // Make sure all files that were loaded up to this point are on /system. Skip the image
-    // files.
-    std::vector<const OatFile*> boot_vector = GetBootOatFiles();
-    std::unordered_set<const OatFile*> boot_set(boot_vector.begin(), boot_vector.end());
+  // Make sure all files that were loaded up to this point are on /system.
+  // Skip the image files as they can encode locations that don't exist (eg not
+  // containing the arch in the path, or for JIT zygote /nonx/existent).
+  std::vector<const OatFile*> boot_vector = GetBootOatFiles();
+  std::unordered_set<const OatFile*> boot_set(boot_vector.begin(), boot_vector.end());
 
-    for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) {
-      if (boot_set.find(oat_file.get()) == boot_set.end()) {
-        CHECK(LocationIsOnSystem(oat_file->GetLocation().c_str())) << oat_file->GetLocation();
-      }
+  for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) {
+    if (boot_set.find(oat_file.get()) == boot_set.end()) {
+      CHECK(LocationIsOnSystem(oat_file->GetLocation().c_str())) << oat_file->GetLocation();
     }
   }
   only_use_system_oat_files_ = true;
diff --git a/runtime/oat_file_manager.h b/runtime/oat_file_manager.h
index ef03f06..71eab16 100644
--- a/runtime/oat_file_manager.h
+++ b/runtime/oat_file_manager.h
@@ -120,7 +120,7 @@
 
   void DumpForSigQuit(std::ostream& os);
 
-  void SetOnlyUseSystemOatFiles(bool assert_no_files_loaded);
+  void SetOnlyUseSystemOatFiles();
 
   // Spawn a background thread which verifies all classes in the given dex files.
   void RunBackgroundVerification(const std::vector<const DexFile*>& dex_files,
diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index 3a94ef6..1a83372 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -1785,7 +1785,7 @@
 
   // Set OnlyUseSystemOatFiles only after boot classpath has been set up.
   if (runtime_options.Exists(Opt::OnlyUseSystemOatFiles)) {
-    oat_file_manager_->SetOnlyUseSystemOatFiles(/*assert_no_files_loaded=*/ true);
+    oat_file_manager_->SetOnlyUseSystemOatFiles();
   }
 
   return true;