1 files changed, 5 insertions, 2 deletions
diff --git a/Firestore/Source/API/FIRFirestore+Internal.h b/Firestore/Source/API/FIRFirestore+Internal.h
index 7bc419a..a52533d 100644
--- a/Firestore/Source/API/FIRFirestore+Internal.h
+++ b/Firestore/Source/API/FIRFirestore+Internal.h
@@ -16,6 +16,9 @@
 
 #import "FIRFirestore.h"
 
+#include <memory>
+
+#include "Firestore/core/src/firebase/firestore/auth/credentials_provider.h"
 #include "Firestore/core/src/firebase/firestore/model/database_id.h"
 #include "absl/strings/string_view.h"
 
@@ -24,7 +27,6 @@ NS_ASSUME_NONNULL_BEGIN
 @class FSTDispatchQueue;
 @class FSTFirestoreClient;
 @class FSTUserDataConverter;
-@protocol FSTCredentialsProvider;
 
 @interface FIRFirestore (/* Init */)
 
@@ -35,7 +37,8 @@ NS_ASSUME_NONNULL_BEGIN
 - (instancetype)initWithProjectID:(const absl::string_view)projectID
                          database:(const absl::string_view)database
                    persistenceKey:(NSString *)persistenceKey
-              credentialsProvider:(id<FSTCredentialsProvider>)credentialsProvider
+              credentialsProvider:(std::unique_ptr<firebase::firestore::auth::CredentialsProvider>)
+                                      credentialsProvider
               workerDispatchQueue:(FSTDispatchQueue *)workerDispatchQueue
                       firebaseApp:(FIRApp *)app;