diff --git a/test/default/sodium_utils2.c b/test/default/sodium_utils2.c
index 7f336687..83221f8d 100644
--- a/test/default/sodium_utils2.c
+++ b/test/default/sodium_utils2.c
@@ -6,6 +6,9 @@
 #ifdef HAVE_CATCHABLE_SEGV
 # include <signal.h>
 #endif
+#ifndef _WIN32
+# include <unistd.h>
+#endif
 
 #define TEST_NAME "sodium_utils2"
 #include "cmptest.h"
@@ -36,7 +39,7 @@ segv_handler(int sig)
     signal(SIGABRT, SIG_DFL);
 # endif
 #endif
-    exit(0);
+    _exit(0);
 }
 
 int
diff --git a/test/default/sodium_utils3.c b/test/default/sodium_utils3.c
index 3bba037a..8eacc44d 100644
--- a/test/default/sodium_utils3.c
+++ b/test/default/sodium_utils3.c
@@ -6,6 +6,9 @@
 #ifdef HAVE_CATCHABLE_SEGV
 # include <signal.h>
 #endif
+#ifndef _WIN32
+# include <unistd.h>
+#endif
 
 #define TEST_NAME "sodium_utils3"
 #include "cmptest.h"
@@ -32,7 +35,7 @@ segv_handler(int sig)
     signal(SIGABRT, SIG_DFL);
 # endif
 #endif
-    exit(0);
+    _exit(0);
 }
 
 int