diff --git a/build.gradle b/build.gradle
index ea265016..5c711493 100755
--- a/build.gradle
+++ b/build.gradle
@@ -99,6 +99,7 @@ mixin {
 }
 
 javadoc {
+    options.addStringOption('Xwerror', '-quiet')
     source += sourceSets.api.allJava
     classpath += sourceSets.api.compileClasspath
 }