diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 957c900609..04a2c3c600 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -22204,7 +22204,6 @@ msbuld->MSBuild
 msbulds->MSBuild's
 msbulid->MSBuild
 msbulids->MSBuild's
-MSDOS->MS-DOS
 mssing->missing
 msssge->message
 mthod->method
diff --git a/codespell_lib/data/dictionary_code.txt b/codespell_lib/data/dictionary_code.txt
index 58306d409f..2c92b49669 100644
--- a/codespell_lib/data/dictionary_code.txt
+++ b/codespell_lib/data/dictionary_code.txt
@@ -34,6 +34,7 @@ jupyter->Jupiter
 keyserver->key server
 lateset->latest
 movei->movie
+MSDOS->MS-DOS
 musl->must
 mut->must, mutt, moot,
 nmake->make