diff --git a/third_party/mempool/CMakeLists.txt b/third_party/mempool/CMakeLists.txt
index b40c5e4..dd9da34 100644
--- a/third_party/mempool/CMakeLists.txt
+++ b/third_party/mempool/CMakeLists.txt
@@ -9,7 +9,7 @@ add_library(${PROJECT_NAME} SHARED
         mempool/ncx_lock.h
         mempool/ncx_slab.c
         mempool/ncx_slab.h
-        mempool/unistd.h
+        mempool/my_unistd.h
         mempool.h
         extern.h
 )