diff --git a/chromium_src/ios/web_view/internal/cwv_web_view_configuration.mm b/chromium_src/ios/web_view/internal/cwv_web_view_configuration.mm
index 2e1e2a53030..f7d486a2c5b 100644
--- a/chromium_src/ios/web_view/internal/cwv_web_view_configuration.mm
+++ b/chromium_src/ios/web_view/internal/cwv_web_view_configuration.mm
@@ -69,7 +69,6 @@
 - (CWVPreferences*)preferences {
   // This property is not nullable, so will crash anyways on the Swift side if
   // accessed.
-  NOTREACHED();
   return nil;
 }
 
diff --git a/ios/browser/api/web_view/brave_web_view_configuration.h b/ios/browser/api/web_view/brave_web_view_configuration.h
index 5605f49cdd4..72c748d492c 100644
--- a/ios/browser/api/web_view/brave_web_view_configuration.h
+++ b/ios/browser/api/web_view/brave_web_view_configuration.h
@@ -11,6 +11,7 @@
 #import "cwv_export.h"                  // NOLINT
 #import "cwv_web_view_configuration.h"  // NOLINT
 
+@class CWVPreferences;
 @class WKWebsiteDataStore;
 @protocol ProfileBridge;
 
@@ -34,6 +35,8 @@ CWV_EXPORT
 + (BraveWebViewConfiguration*)configurationForProfile:
     (id<ProfileBridge>)profileBridge NS_SWIFT_NAME(init(profile:));
 
+@property(nonatomic, readonly) CWVPreferences* preferences NS_UNAVAILABLE;
+
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/ios/browser/api/web_view/brave_web_view_configuration.mm b/ios/browser/api/web_view/brave_web_view_configuration.mm
index 3d6d003956f..8aa6be1298c 100644
--- a/ios/browser/api/web_view/brave_web_view_configuration.mm
+++ b/ios/browser/api/web_view/brave_web_view_configuration.mm
@@ -24,6 +24,7 @@
 @implementation BraveWebViewConfiguration {
   CWVAutofillDataManager* _autofillDataManager;
 }
+@dynamic preferences;
 
 - (id<ProfileBridge>)profile {
   auto* profile = ProfileIOS::FromBrowserState(self.browserState);