diff --git a/tests/unit_tests/openvpn/test_argv.c b/tests/unit_tests/openvpn/test_argv.c
index 3dc470a52..e686adcb5 100644
--- a/tests/unit_tests/openvpn/test_argv.c
+++ b/tests/unit_tests/openvpn/test_argv.c
@@ -2,7 +2,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/tests/unit_tests/openvpn/test_auth_token.c b/tests/unit_tests/openvpn/test_auth_token.c
index 6bfad6efb..5299c3643 100644
--- a/tests/unit_tests/openvpn/test_auth_token.c
+++ b/tests/unit_tests/openvpn/test_auth_token.c
@@ -30,7 +30,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/tests/unit_tests/openvpn/test_crypto.c b/tests/unit_tests/openvpn/test_crypto.c
index f4cc81a04..32063fc46 100644
--- a/tests/unit_tests/openvpn/test_crypto.c
+++ b/tests/unit_tests/openvpn/test_crypto.c
@@ -30,7 +30,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/tests/unit_tests/openvpn/test_misc.c b/tests/unit_tests/openvpn/test_misc.c
index b7623bea0..70f726d0f 100644
--- a/tests/unit_tests/openvpn/test_misc.c
+++ b/tests/unit_tests/openvpn/test_misc.c
@@ -30,7 +30,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/tests/unit_tests/openvpn/test_ncp.c b/tests/unit_tests/openvpn/test_ncp.c
index 293093f1a..613b5f1ba 100644
--- a/tests/unit_tests/openvpn/test_ncp.c
+++ b/tests/unit_tests/openvpn/test_ncp.c
@@ -30,7 +30,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
diff --git a/tests/unit_tests/openvpn/test_tls_crypt.c b/tests/unit_tests/openvpn/test_tls_crypt.c
index 3e604d672..12ea9452d 100644
--- a/tests/unit_tests/openvpn/test_tls_crypt.c
+++ b/tests/unit_tests/openvpn/test_tls_crypt.c
@@ -30,7 +30,6 @@
 #include "syshead.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>