diff --git a/filetypes.xml b/filetypes.xml
index 04212b0..33cc104 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -3,6 +3,7 @@
     <ignoreFiles list="*.orig;*.pyc;*.pyo;*.rbc;*.yarb;*~;.DS_Store;.git;.hg;.svn;CVS;__pycache__;_svn;vssver.scc;vssver2.scc;" />
     <extensionMap>
       <mapping pattern="_nanorc" type="AUTO_DETECTED" />
+      <mapping pattern="npm-shrinkwrap" type="AUTO_DETECTED" />
       <mapping pattern="wordlist.json" type="JSON" />
       <mapping pattern=".eslintrc.json.orig" type="PLAIN_TEXT" />
       <mapping pattern=".env" type="PLAIN_TEXT" />