diff --git a/build.gradle b/build.gradle
index 9a7a290e..565c8013 100644
--- a/build.gradle
+++ b/build.gradle
@@ -24,6 +24,7 @@ buildscript {
         classpath 'com.android.tools.build:gradle:3.3.1'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.50"
+        classpath "org.jetbrains.dokka:dokka-gradle-plugin:0.10.0"
     }
 }
 
diff --git a/okdownload-kotlin-enhance/build.gradle b/okdownload-kotlin-enhance/build.gradle
index 692cff18..fec5f369 100644
--- a/okdownload-kotlin-enhance/build.gradle
+++ b/okdownload-kotlin-enhance/build.gradle
@@ -1,5 +1,6 @@
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
+apply plugin: 'org.jetbrains.dokka'
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion
@@ -35,6 +36,16 @@ dependencies {
     compileOnly project(':okdownload')
 }
 
+dokka {
+    outputFormat = 'html'
+    outputDirectory = "$buildDir/docs/javadoc"
+}
+
+tasks.withType(Javadoc).all {
+    excludes = ['**/*.kt']
+    dependsOn dokka
+}
+
 apply from: rootProject.file('gradle/gradle-mvn-push.gradle')
 if (hasProperty("isCI")) {
     apply from: rootProject.file('gradle/codecov.gradle')