diff --git a/src/codes_tagset.py b/src/codes_tagset.py
index c3f3fb6..8a7b584 100644
--- a/src/codes_tagset.py
+++ b/src/codes_tagset.py
@@ -68,6 +68,7 @@ CODES = {
     "foreign": "f",
     "typo": "t",
     "program": "p",
+    "web": "w",
 }
 
 TAGSET = {
diff --git a/src/msd_translate.py b/src/msd_translate.py
index 4598a80..18faa7a 100644
--- a/src/msd_translate.py
+++ b/src/msd_translate.py
@@ -1907,4 +1907,5 @@ MSD_TRANSLATE = {
     "Nj": "Xf",
     "Nt": "Xt",
     "Np": "Xp",
+    "Nw": "Xw",
     "U": "N"}