diff --git a/src/main/java/me/hatter/tool/signpdf/CreateSignatureBase.java b/src/main/java/me/hatter/tool/signpdf/CreateSignatureBase.java
index fa45992..8a298fc 100644
--- a/src/main/java/me/hatter/tool/signpdf/CreateSignatureBase.java
+++ b/src/main/java/me/hatter/tool/signpdf/CreateSignatureBase.java
@@ -74,7 +74,8 @@ public abstract class CreateSignatureBase implements SignatureInterface {
             } else {
                 throw new RuntimeException("Supported algorithm: " + cert.getPublicKey().getClass());
             }
-            final ContentSigner contentSigner = new JcaContentSignerBuilder(signatureAlgorithm).build(privateKey);
+            final ContentSigner contentSigner = new JcaContentSignerBuilder(signatureAlgorithm)
+                    .build(privateKey);
             gen.addSignerInfoGenerator(new JcaSignerInfoGeneratorBuilder(
                     new JcaDigestCalculatorProviderBuilder().build()).build(contentSigner, cert));