diff --git a/tests/test-is-public-all.c b/tests/test-is-public-all.c
index 977f7ff..a1ec289 100644
--- a/tests/test-is-public-all.c
+++ b/tests/test-is-public-all.c
@@ -46,7 +46,7 @@ static int
 	ok,
 	failed;
 #ifdef HAVE_CLOCK_GETTIME
-	struct timespec ts1, ts2;
+	static struct timespec ts1, ts2;
 #endif
 
 static int _isspace_ascii(const char c)