diff --git a/test/testxlate.c b/test/testxlate.c
index 6981eff..de00fa4 100644
--- a/test/testxlate.c
+++ b/test/testxlate.c
@@ -116,8 +116,12 @@ static void test_transformation(abts_case *tc, void *data)
     }
 
     /* 4. Transformation using charset aliases */
-    one_test(tc, "UTF-8", "UTF-7", test_utf8, test_utf7, p);
-    one_test(tc, "UTF-7", "UTF-8", test_utf7, test_utf8, p);
+    if (is_transform_supported(tc, "UTF-8", "UTF-7", p)) {
+        one_test(tc, "UTF-8", "UTF-7", test_utf8, test_utf7, p);
+    }
+    if (is_transform_supported(tc, "UTF-7", "UTF-8", p)) {
+        one_test(tc, "UTF-7", "UTF-8", test_utf7, test_utf8, p);
+    }
 }
 
 #endif /* APR_HAS_XLATE */
