diff --git a/src/tool_main.c b/src/tool_main.c
index cdf87ea3c3634790defee978799b9706b40f8847..00a2410324d6d44fa7d6421b07a47b5c8767424c 100644
--- a/src/tool_main.c
+++ b/src/tool_main.c
@@ -27,10 +27,6 @@
 #include <signal.h>
 #endif
 
-#ifdef HAVE_UNISTD_H
-#  include <unistd.h>
-#endif
-
 #define ENABLE_CURLX_PRINTF
 /* use our own printf() functions */
 #include "curlx.h"