diff --git a/pgpainless-core/src/main/java/org/pgpainless/key/OpenPgpV4Fingerprint.java b/pgpainless-core/src/main/java/org/pgpainless/key/OpenPgpV4Fingerprint.java
index b5b3d4a7..2605eb0c 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/key/OpenPgpV4Fingerprint.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/key/OpenPgpV4Fingerprint.java
@@ -72,7 +72,7 @@ public class OpenPgpV4Fingerprint extends OpenPgpFingerprint {
     }
 
     public OpenPgpV4Fingerprint(@Nonnull byte[] bytes) {
-        super(bytes);
+        super(Hex.encode(bytes));
     }
 
     public OpenPgpV4Fingerprint(@Nonnull PGPPublicKey key) {
diff --git a/pgpainless-core/src/main/java/org/pgpainless/signature/subpackets/SignatureSubpacketsUtil.java b/pgpainless-core/src/main/java/org/pgpainless/signature/subpackets/SignatureSubpacketsUtil.java
index b73ddde7..960d5256 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/signature/subpackets/SignatureSubpacketsUtil.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/signature/subpackets/SignatureSubpacketsUtil.java
@@ -89,7 +89,7 @@ public final class SignatureSubpacketsUtil {
 
         OpenPgpFingerprint fingerprint = null;
         if (subpacket.getKeyVersion() == 4) {
-            fingerprint = new OpenPgpV4Fingerprint(Hex.encode(subpacket.getFingerprint()));
+            fingerprint = new OpenPgpV4Fingerprint(subpacket.getFingerprint());
         }
 
         return fingerprint;