diff --git a/Makefile b/Makefile
index 8a7440a..c8d81bf 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,6 @@ OUTPUTDIR=$(BASEDIR)/output
 PACKAGE=src
 
 html:
-	javadoc "$(PACKAGE)" -d "$(OUTPUTDIR)"
+	javadoc "$(PACKAGE)" -d "$(OUTPUTDIR)" -encoding UTF-8
 
 .PHONY: html
\ No newline at end of file