diff --git a/jvm/src/main/groovy/org/asciidoctor/gradle/jvm/AbstractAsciidoctorTask.groovy b/jvm/src/main/groovy/org/asciidoctor/gradle/jvm/AbstractAsciidoctorTask.groovy
index 7522f8a8..4b44880b 100644
--- a/jvm/src/main/groovy/org/asciidoctor/gradle/jvm/AbstractAsciidoctorTask.groovy
+++ b/jvm/src/main/groovy/org/asciidoctor/gradle/jvm/AbstractAsciidoctorTask.groovy
@@ -523,13 +523,13 @@ class AbstractAsciidoctorTask extends AbstractJvmModelExecTask<AsciidoctorJvmExe
 
         def asciidoctorj = extensions.create(AsciidoctorJExtension.NAME, AsciidoctorJExtension, this)
         this.optionsProperty.set(asciidoctorj.options)
-        this.safeModeProperty.set(asciidoctorj.getSafeMode())
+        this.safeModeProperty.set(asciidoctorj.safeMode)
         this.attributesProperty.set(asciidoctorj.attributes)
         this.attributeProviderProperty.set(asciidoctorj.attributeProviders)
         this.configurationsFileCollection = getConfigurations(asciidoctorj)
         this.fatalWarningsProperty.set(asciidoctorj.fatalWarnings)
         this.requiresProperty.set(asciidoctorj.requires)
-        this.logLevelProperty.set(asciidoctorj.getLogLevel() != null ? asciidoctorj.getLogLevel() : LogLevel.INFO)
+        this.logLevelProperty.set(asciidoctorj.logLevel != null ? asciidoctorj.logLevel : LogLevel.INFO)
         this.docExtensionsProperty.set(asciidoctorj.docExtensions)
 
         this.projectDir = project.projectDir