diff --git a/tests/windows.c b/tests/windows.c
index 8992516d..89c7328c 100644
--- a/tests/windows.c
+++ b/tests/windows.c
@@ -32,7 +32,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-static const char* titles[] =
+static const char* titles[4] =
 {
     "Foo",
     "Bar",