diff --git a/makefile b/makefile
index 84324cc..fce2556 100644
--- a/makefile
+++ b/makefile
@@ -1,3 +1,3 @@
 all:
-	javac -O Whois.java
+	javac Whois.java
 	jar cvfm Whois.jar MANIFEST.MF Whois.class