diff --git a/lib/index.js b/lib/index.js
index 1443137..222861a 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -270,6 +270,9 @@ class Integrity {
   match (integrity, opts) {
     opts = ssriOpts(opts)
     const other = parse(integrity, opts)
+    if (!other) {
+      return false
+    }
     const algo = other.pickAlgorithm(opts)
     return (
       this[algo] &&
diff --git a/test/integrity.js b/test/integrity.js
index 1bc86c6..acd0a1e 100644
--- a/test/integrity.js
+++ b/test/integrity.js
@@ -108,6 +108,7 @@ test('match()', t => {
   }, 'returns the strongest match')
   t.notOk(sri.match('sha512-foo'), 'falsy when match fails')
   t.notOk(sri.match('sha384-foo'), 'falsy when match fails')
+  t.notOk(sri.match(null), 'falsy when integrity is null')
   t.end()
 })