diff --git a/.gitignore b/.gitignore
index 05514a1..2e70534 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,15 @@ migrate_working_dir/
 .pub/
 /build/
 
+# Flutter generated files
+# Not doing this at this time: https://stackoverflow.com/questions/56110386/should-i-commit-generated-code-in-flutter-dart-to-vcs
+# *.g.dart
+# *.freezed.dart
+# *.pb.dart
+# *.pbenum.dart
+# *.pbjson.dart
+# *.pbserver.dart
+
 # Symbolication related
 app.*.symbols
 
diff --git a/build.bat b/build.bat
index eca850b..0889dcf 100644
--- a/build.bat
+++ b/build.bat
@@ -1,5 +1,5 @@
 @echo off
-dart run build_runner build
+dart run build_runner build --delete-conflicting-outputs
 
 pushd lib
 protoc --dart_out=proto -I veilid_support\proto -I veilid_support\dht_support\proto -I proto veilidchat.proto
diff --git a/build.sh b/build.sh
index 6f58bf8..96cce52 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 set -e
-dart run build_runner build
+dart run build_runner build --delete-conflicting-outputs
 
 pushd lib > /dev/null
 protoc --dart_out=proto -I veilid_support/proto -I veilid_support/dht_support/proto -I proto veilidchat.proto