diff --git a/packages/metro/src/Server/index.js b/packages/metro/src/Server/index.js
index aabff411..efc5e4dc 100644
--- a/packages/metro/src/Server/index.js
+++ b/packages/metro/src/Server/index.js
@@ -452,6 +452,9 @@ class Server {
       };
     }
 
+    /* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
+     * error found when Flow v0.63 was deployed. To see the error delete this
+     * comment and run Flow. */
     this._reporter.update({
       buildID,
       bundleDetails: {
diff --git a/packages/metro/src/lib/BatchProcessor.js b/packages/metro/src/lib/BatchProcessor.js
index 2f1359a1..0fc7de61 100644
--- a/packages/metro/src/lib/BatchProcessor.js
+++ b/packages/metro/src/lib/BatchProcessor.js
@@ -94,11 +94,17 @@ class BatchProcessor<TItem, TResult> {
 
   _processQueueOnceReady() {
     if (this._queue.length >= this._options.maximumItems) {
+      /* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
+       * error found when Flow v0.63 was deployed. To see the error delete this
+       * comment and run Flow. */
       clearTimeout(this._timeoutHandle);
       process.nextTick(this._processQueue);
       return;
     }
     if (this._timeoutHandle == null) {
+      /* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
+       * error found when Flow v0.63 was deployed. To see the error delete this
+       * comment and run Flow. */
       this._timeoutHandle = setTimeout(
         this._processQueue,
         this._options.maximumDelayMs,