diff --git a/.gitignore b/.gitignore
index 180fb4c500..7a799c09a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,6 +24,7 @@ make_config.mk
 *.vcxproj.filters
 *.sln
 *.cmake
+.watchmanconfig
 CMakeCache.txt
 CMakeFiles/
 build/
diff --git a/.watchmanconfig b/.watchmanconfig
new file mode 100644
index 0000000000..e5b450d7bb
--- /dev/null
+++ b/.watchmanconfig
@@ -0,0 +1,6 @@
+{
+  "content_hash_warming": true,
+  "content_hash_max_items": 333333,
+  "hint_num_files_per_dir": 8,
+  "fsevents_latency": 0.05
+}