diff --git a/packages/emnapi/src/uv/threadpool.c b/packages/emnapi/src/uv/threadpool.c
index 37548b18..12c15b85 100644
--- a/packages/emnapi/src/uv/threadpool.c
+++ b/packages/emnapi/src/uv/threadpool.c
@@ -406,7 +406,7 @@ static void uv__queue_done(struct uv__work* w, int err) {
   uv_work_t* req;
 
   req = container_of(w, uv_work_t, work_req);
-  uv__req_unregister(req->loop, req);
+  uv__req_unregister(req->loop);
 
   if (req->after_work_cb == NULL)
     return;
diff --git a/packages/emnapi/src/uv/uv-common.h b/packages/emnapi/src/uv/uv-common.h
index 1c4c3098..9c5c9c5b 100644
--- a/packages/emnapi/src/uv/uv-common.h
+++ b/packages/emnapi/src/uv/uv-common.h
@@ -136,13 +136,13 @@ enum {
 #define uv__has_active_reqs(loop)                                             \
   ((loop)->active_reqs.count > 0)
 
-#define uv__req_register(loop, req)                                           \
+#define uv__req_register(loop)                                                \
   do {                                                                        \
     (loop)->active_reqs.count++;                                              \
   }                                                                           \
   while (0)
 
-#define uv__req_unregister(loop, req)                                         \
+#define uv__req_unregister(loop)                                              \
   do {                                                                        \
     assert(uv__has_active_reqs(loop));                                        \
     (loop)->active_reqs.count--;                                              \
@@ -152,7 +152,7 @@ enum {
 #define uv__req_init(loop, req, typ)                                          \
   do {                                                                        \
     UV_REQ_INIT(req, typ);                                                    \
-    uv__req_register(loop, req);                                              \
+    uv__req_register(loop);                                                   \
   }                                                                           \
   while (0)