diff --git a/src/libCom/test/buckTest.c b/src/libCom/test/buckTest.c
index 4d5a4ee01..3134fec6a 100644
--- a/src/libCom/test/buckTest.c
+++ b/src/libCom/test/buckTest.c
@@ -9,7 +9,6 @@
 
 #include <time.h>
 #include <stdio.h>
-#include <unistd.h>
 
 #include "epicsAssert.h"
 #include "bucketLib.h"