diff --git a/src/66/66-inservice.c b/src/66/66-inservice.c
index 980dbdd5afca5a4093060b1e8587ecfec699432e..e69120ce26193709c3f1a119a318ff83b66ece61 100644
--- a/src/66/66-inservice.c
+++ b/src/66/66-inservice.c
@@ -16,7 +16,6 @@
 #include <locale.h>
 #include <langinfo.h>
 #include <sys/types.h>
-#include <sys/unistd.h>
 #include <wchar.h>
 #include <unistd.h>
 //#include <stdio.h>