diff --git a/default.properties b/default.properties
index 9d536c382..528230532 100644
--- a/default.properties
+++ b/default.properties
@@ -12,3 +12,4 @@ split.density=false
 # Project target.
 target=android-9
 extensible.libs.classpath=compile-only-libs
+java.encoding=utf8