diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
index 49b9484b3..105fdd6c9 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
@@ -130,6 +130,9 @@ public class WrappedSignature {
         }
         SignatureSubpacket p = mSig.getHashedSubPackets().getSubpacket(
                 SignatureSubpacketTags.REVOCATION_REASON);
+        if (p == null) {
+            return null;
+        }
         // For some reason, this is missing in SignatureSubpacketInputStream:146
         if (!(p instanceof RevocationReason)) {
             p = new RevocationReason(false, false, p.getData());