diff --git a/src/unix/core.c b/src/unix/core.c
index 002041e9..6c5e8e61 100644
--- a/src/unix/core.c
+++ b/src/unix/core.c
@@ -276,7 +276,7 @@ void uv__handle_init(uv_loop_t* loop, uv_handle_t* handle,
 
   handle->loop = loop;
   handle->type = type;
-  handle->flags = UV__REF; /* ref the loop when active */
+  handle->flags = UV__HANDLE_REF; /* ref the loop when active */
   handle->next_closing = NULL;
 }
 
diff --git a/src/uv-common.h b/src/uv-common.h
index 6e484ef5..df2a647b 100644
--- a/src/uv-common.h
+++ b/src/uv-common.h
@@ -49,12 +49,12 @@
 
 #ifndef _WIN32
 enum {
-  UV__ACTIVE       = 0x4000,
-  UV__REF          = 0x8000
+  UV__HANDLE_ACTIVE = 0x4000,
+  UV__HANDLE_REF    = 0x8000
 };
 #else
-# define UV__REF     0x00000020
-# define UV__ACTIVE  0x00000040
+# define UV__HANDLE_ACTIVE  0x40
+# define UV__HANDLE_REF     0x20
 #endif
 
 extern const uv_err_t uv_ok_;
@@ -117,35 +117,35 @@ UNUSED static void uv__active_handle_rm(uv_handle_t* h) {
 #define uv__req_unregister(loop, req) uv__req_unregister((loop), (uv_req_t*)(req))
 
 UNUSED static int uv__is_active(const uv_handle_t* h) {
-  return !!(h->flags & UV__ACTIVE);
+  return !!(h->flags & UV__HANDLE_ACTIVE);
 }
 #define uv__is_active(h) uv__is_active((const uv_handle_t*)(h))
 
 UNUSED static void uv__handle_start(uv_handle_t* h) {
-  if (h->flags & UV__ACTIVE) return;
-  if (h->flags & UV__REF) uv__active_handle_add(h);
-  h->flags |= UV__ACTIVE;
+  if (h->flags & UV__HANDLE_ACTIVE) return;
+  if (h->flags & UV__HANDLE_REF) uv__active_handle_add(h);
+  h->flags |= UV__HANDLE_ACTIVE;
 }
 #define uv__handle_start(h) uv__handle_start((uv_handle_t*)(h))
 
 UNUSED static void uv__handle_stop(uv_handle_t* h) {
-  if (!(h->flags & UV__ACTIVE)) return;
-  if (h->flags & UV__REF) uv__active_handle_rm(h);
-  h->flags &= ~UV__ACTIVE;
+  if (!(h->flags & UV__HANDLE_ACTIVE)) return;
+  if (h->flags & UV__HANDLE_REF) uv__active_handle_rm(h);
+  h->flags &= ~UV__HANDLE_ACTIVE;
 }
 #define uv__handle_stop(h) uv__handle_stop((uv_handle_t*)(h))
 
 UNUSED static void uv__handle_ref(uv_handle_t* h) {
-  if (h->flags & UV__REF) return;
-  if (h->flags & UV__ACTIVE) uv__active_handle_add(h);
-  h->flags |= UV__REF;
+  if (h->flags & UV__HANDLE_REF) return;
+  if (h->flags & UV__HANDLE_ACTIVE) uv__active_handle_add(h);
+  h->flags |= UV__HANDLE_REF;
 }
 #define uv__handle_ref(h) uv__handle_ref((uv_handle_t*)(h))
 
 UNUSED static void uv__handle_unref(uv_handle_t* h) {
-  if (!(h->flags & UV__REF)) return;
-  if (h->flags & UV__ACTIVE) uv__active_handle_rm(h);
-  h->flags &= ~UV__REF;
+  if (!(h->flags & UV__HANDLE_REF)) return;
+  if (h->flags & UV__HANDLE_ACTIVE) uv__active_handle_rm(h);
+  h->flags &= ~UV__HANDLE_REF;
 }
 #define uv__handle_unref(h) uv__handle_unref((uv_handle_t*)(h))
 
diff --git a/src/win/handle.c b/src/win/handle.c
index b5011438..5f8b2408 100644
--- a/src/win/handle.c
+++ b/src/win/handle.c
@@ -57,13 +57,14 @@ uv_handle_type uv_guess_handle(uv_file file) {
 
 
 int uv_is_active(const uv_handle_t* handle) {
-  return (handle->flags & UV__ACTIVE) && !(handle->flags & UV_HANDLE_CLOSING);
+  return (handle->flags & UV__HANDLE_ACTIVE) &&
+        !(handle->flags & UV_HANDLE_CLOSING);
 }
 
 
 void uv_handle_init(uv_loop_t* loop, uv_handle_t* handle) {
   handle->loop = loop;
-  handle->flags = UV__REF;
+  handle->flags = UV__HANDLE_REF;
 
   loop->counters.handle_init++;
 }
diff --git a/src/win/internal.h b/src/win/internal.h
index f594ddd3..e505292c 100644
--- a/src/win/internal.h
+++ b/src/win/internal.h
@@ -40,9 +40,8 @@
 #define UV_HANDLE_ENDGAME_QUEUED                0x00000004
 #define UV_HANDLE_ACTIVE                        0x00000010
 
-/* Keep in sync with uv-common.h: */
-#define UV__REF                                 0x00000020
-#define UV__ACTIVE                              0x00000040
+/* uv-common.h: #define UV__HANDLE_ACTIVE       0x00000040 */
+/* uv-common.h: #define UV__HANDLE_REF          0x00000020 */
 /* reserved: #define UV_HANDLE_INTERNAL         0x00000080 */
 
 /* Used by streams and UDP handles. */