diff --git a/plugin/thread_pool/threadpool_unix.cc b/plugin/thread_pool/threadpool_unix.cc
index 9fca0207452a..b0a2a61a70b2 100644
--- a/plugin/thread_pool/threadpool_unix.cc
+++ b/plugin/thread_pool/threadpool_unix.cc
@@ -155,7 +155,7 @@ int vio_cancel(Vio *vio, int how)
   int r= 0;
   DBUG_ENTER("vio_cancel");
 
-  if (vio->inactive == FALSE)
+  if (vio->inactive == false)
   {
     assert(vio->type ==  VIO_TYPE_TCPIP ||
       vio->type == VIO_TYPE_SOCKET ||