diff --git a/tests/test-timespec.c b/tests/test-timespec.c
index de8e29d..f5a43f5 100644
--- a/tests/test-timespec.c
+++ b/tests/test-timespec.c
@@ -65,7 +65,7 @@ valid (struct timespec a)
 static int
 sign (int i)
 {
-  return i < 0 ? -1 : 0 < i;
+  return i < 0 ? -1 : 0 < i ? 1 : 0;
 }

 static int