diff --git a/pg/src/main/jdk1.9/module-info.java b/pg/src/main/jdk1.9/module-info.java
index b4b68b6d85..622ea41135 100644
--- a/pg/src/main/jdk1.9/module-info.java
+++ b/pg/src/main/jdk1.9/module-info.java
@@ -12,6 +12,9 @@
     exports org.bouncycastle.gpg.keybox;
     exports org.bouncycastle.gpg.keybox.bc;
     exports org.bouncycastle.gpg.keybox.jcajce;
+    exports org.bouncycastle.openpgp.api;
+    exports org.bouncycastle.openpgp.api.bc;
+    exports org.bouncycastle.openpgp.api.jcajce;
     exports org.bouncycastle.openpgp.bc;
     exports org.bouncycastle.openpgp.examples;
     exports org.bouncycastle.openpgp.jcajce;