diff --git a/tools/bots/flutter/compile_flutter.sh b/tools/bots/flutter/compile_flutter.sh
index 511855c401f..35d271fa03c 100755
--- a/tools/bots/flutter/compile_flutter.sh
+++ b/tools/bots/flutter/compile_flutter.sh
@@ -73,6 +73,7 @@ git clone --single-branch --depth=1 -vv \
 pushd src
 git clone --single-branch --depth=1 -vv \
     https://dart.googlesource.com/external/github.com/flutter/engine flutter
+mkdir -p third_party
 pushd third_party
 ln -s $checkout dart
 popd  # third_party