diff --git a/build.gradle b/build.gradle
index 7f9232683c398bad60c7808c4b2d674e2f807a91..a554a8571724652547f6703b862cb547e5185bf7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,6 +4,7 @@ apply plugin: 'jacoco'
 apply plugin: 'eclipse-wtp'
 
 sourceCompatibility = 1.8
+compileJava.options.encoding = 'UTF-8'
 
 repositories {
   jcenter()