diff --git a/build.gradle b/build.gradle
index 0002e4296f..32148e554b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -231,6 +231,7 @@ configure(subprojects - project(":annotations")){
         options{
             addStringOption('Xdoclint:none', '-quiet')
             addStringOption('-release', '16')
+            encoding('UTF-8')
         }
     }
 }