diff --git a/lib/lookup.json b/lib/lookup.json
index 152fdeab..19f33d2b 100644
--- a/lib/lookup.json
+++ b/lib/lookup.json
@@ -61,7 +61,7 @@
   "blake2b-wasm": {
     "maintainers": ["mafintosh", "addaleax"],
     "prefix": "v",
-    "skip": ["win32", "aix", "s390"]
+    "skip": ["win32", "aix"]
   },
   "bluebird": {
     "prefix": "v",