diff --git a/conf.avail/90-fonts-nanum.conf b/conf.avail/90-fonts-nanum.conf
index f9f8153..ca067cb 100644
--- a/conf.avail/90-fonts-nanum.conf
+++ b/conf.avail/90-fonts-nanum.conf
@@ -47,7 +47,7 @@
        TODO: it will be moved to fontconfig default configs -->
   <match target="pattern">
     <test qual="any" name="lang" compare="contains">
-      <string>ko</string>
+      <string>korean</string>
     </test>
     <test qual="any" name="family" compare="eq">
       <string>sans-serif</string>
@@ -58,7 +58,7 @@
   </match>
   <match target="pattern">
     <test qual="any" name="lang" compare="contains">
-      <string>ko</string>
+      <string>korean</string>
     </test>
     <test qual="any" name="family" compare="eq">
       <string>serif</string>