diff --git a/internal/proxy/database_interceptor.go b/internal/proxy/database_interceptor.go
index 85578d5029df5..2b12a9fe6b6c6 100644
--- a/internal/proxy/database_interceptor.go
+++ b/internal/proxy/database_interceptor.go
@@ -68,6 +68,11 @@ func fillDatabase(ctx context.Context, req interface{}) (context.Context, interf
 			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
 		}
 		return ctx, r
+	case *milvuspb.AlterCollectionFieldRequest:
+		if r.DbName == "" {
+			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
+		}
+		return ctx, r
 	case *milvuspb.CreatePartitionRequest:
 		if r.DbName == "" {
 			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
diff --git a/internal/proxy/database_interceptor_test.go b/internal/proxy/database_interceptor_test.go
index bf989c76e632c..d5c84e721f816 100644
--- a/internal/proxy/database_interceptor_test.go
+++ b/internal/proxy/database_interceptor_test.go
@@ -57,6 +57,7 @@ func TestDatabaseInterceptor(t *testing.T) {
 			&milvuspb.GetCollectionStatisticsRequest{},
 			&milvuspb.ShowCollectionsRequest{},
 			&milvuspb.AlterCollectionRequest{},
+			&milvuspb.AlterCollectionFieldRequest{},
 			&milvuspb.CreatePartitionRequest{},
 			&milvuspb.DropPartitionRequest{},
 			&milvuspb.HasPartitionRequest{},