diff --git a/src/main/java9/module-info.java b/src/main/java9/module-info.java
index d815613..c68ff0f 100644
--- a/src/main/java9/module-info.java
+++ b/src/main/java9/module-info.java
@@ -1,4 +1,5 @@
 module com.nulabinc.zxcvbn {
   exports com.nulabinc.zxcvbn;
+  exports com.nulabinc.zxcvbn.io;
   exports com.nulabinc.zxcvbn.matchers;
 }