diff --git a/src/rio.h b/src/rio.h
index 10e5ad2821..146cd81ab3 100644
--- a/src/rio.h
+++ b/src/rio.h
@@ -116,7 +116,7 @@ typedef struct _rio rio;
  * if needed. */
 
 static inline size_t rioWrite(rio *r, const void *buf, size_t len) {
-    if (r->flags & RIO_FLAG_WRITE_ERROR) return 0;
+    if (r->flags & RIO_FLAG_WRITE_ERROR || r->flags & RIO_FLAG_CLOSE_ASAP) return 0;
     while (len) {
         size_t bytes_to_write =
             (r->max_processing_chunk && r->max_processing_chunk < len) ? r->max_processing_chunk : len;