diff --git a/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java b/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
index bb0af660..51624214 100644
--- a/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
+++ b/pgpainless-sop/src/main/java/org/pgpainless/sop/EncryptImpl.java
@@ -60,7 +60,11 @@ public class EncryptImpl implements Encrypt {
                 signingOptions = SigningOptions.get();
             }
             try {
-                signingOptions.addInlineSignatures(SecretKeyRingProtector.unprotectedKeys(), keys, DocumentSignatureType.BINARY_DOCUMENT);
+                signingOptions.addInlineSignatures(
+                        SecretKeyRingProtector.unprotectedKeys(),
+                        keys,
+                        (encryptAs == EncryptAs.Binary ? DocumentSignatureType.BINARY_DOCUMENT : DocumentSignatureType.CANONICAL_TEXT_DOCUMENT)
+                );
             } catch (IllegalArgumentException e) {
                 throw new SOPGPException.KeyCannotSign();
             } catch (WrongPassphraseException e) {