diff --git a/dictsource/en_rules b/dictsource/en_rules
index de03a361..f2307c37 100644
--- a/dictsource/en_rules
+++ b/dictsource/en_rules
@@ -44,6 +44,9 @@
 
 
 .replace
+   æ   ae
+   œ   oe
+
    ff   ff     // ligatures
    fi   fi
    fl   fl