| Index: runtime/bin/file_system_watcher_linux.cc | 
| diff --git a/runtime/bin/file_system_watcher_linux.cc b/runtime/bin/file_system_watcher_linux.cc | 
| index 819eee83794fd82be82850b1a14c9ee00de17b39..43fe4e13232d8a53f4315af9309ae799911cadf8 100644 | 
| --- a/runtime/bin/file_system_watcher_linux.cc | 
| +++ b/runtime/bin/file_system_watcher_linux.cc | 
| @@ -71,6 +71,7 @@ Dart_Handle FileSystemWatcher::ReadEvents(intptr_t id) { | 
| if (e->mask & IN_MOVE) mask |= kMove; | 
| if (e->mask & IN_DELETE) mask |= kDelete; | 
| if (e->mask & IN_DELETE_SELF) mask |= kDeleteSelf; | 
| +    if (e->mask & IN_ISDIR) mask |= kIsDir; | 
| Dart_ListSetAt(event, 0, Dart_NewInteger(mask)); | 
| Dart_ListSetAt(event, 1, Dart_NewInteger(e->cookie)); | 
| if (e->len > 0) { | 
|  |