1 files changed, 1 insertions, 1 deletions
diff --git a/src/javascript/jsc/bindings/builtins/js/ReadableStreamInternals.js b/src/javascript/jsc/bindings/builtins/js/ReadableStreamInternals.js
index 18e82262c..09387c9f1 100644
--- a/src/javascript/jsc/bindings/builtins/js/ReadableStreamInternals.js
+++ b/src/javascript/jsc/bindings/builtins/js/ReadableStreamInternals.js
@@ -732,7 +732,7 @@ function readableStreamDefaultControllerEnqueue(controller, chunk)
     // this is checked by callers
     @assert(@readableStreamDefaultControllerCanCloseOrEnqueue(controller));
 
-    if (@isReadableStreamLocked(stream) && @getByIdDirectPrivate(@getByIdDirectPrivate(stream, "reader"), "readRequests").isNotEmpty) {
+    if (@isReadableStreamLocked(stream) && @getByIdDirectPrivate(@getByIdDirectPrivate(stream, "reader"), "readRequests")?.isNotEmpty()) {
         @readableStreamFulfillReadRequest(stream, chunk, false);
         @readableStreamDefaultControllerCallPullIfNeeded(controller);
         return;