diff --git a/dlls/shlwapi/tests/ordinal.c b/dlls/shlwapi/tests/ordinal.c
index d60effd..4a8a14a 100644
--- a/dlls/shlwapi/tests/ordinal.c
+++ b/dlls/shlwapi/tests/ordinal.c
@@ -2598,11 +2598,13 @@ static void test_SHGetIniString(void)
     ok(ret == 0, "SHGetIniStringW should have given 0, instead: %d\n", ret);
 
     /* valid arguments */
+    memset(out, 0, sizeof(out));
     ret = pSHGetIniStringW(TestAppW, NULL, out, sizeof(out), TestIniW);
     ok(broken(ret == 0) || /* win 98 */
             ret == 4, "SHGetIniStringW should have given 4, instead: %d\n", ret);
     ok(!lstrcmpW(out, AKeyW), "Expected %s, got: %s\n",
                 wine_dbgstr_w(AKeyW), wine_dbgstr_w(out));
+    ok(*(out + lstrlenW(AKeyW) + 1) == 0, "Should've been NULLs after first key\n");
 
     ret = pSHGetIniStringW(TestAppW, AKeyW, out, sizeof(out), TestIniW);
     ok(broken(ret == 0) || /* win 98 */