diff --git a/find.xml b/find.xml
index cfd79d1..9303a1c 100644
--- a/find.xml
+++ b/find.xml
@@ -5,6 +5,7 @@
     <option name="showResultsInSeparateView" value="true" />
     <option name="SHOW_RESULTS_IN_SEPARATE_VIEW" value="true" />
     <option name="SEARCH_SCOPE" value="All Places" />
+    <option name="FILE_MASK" value="*.nix" />
     <mask>*.leex</mask>
     <mask>*.html.eex</mask>
     <mask>*.html.?eex</mask>
@@ -18,5 +19,6 @@
     <mask>*.html.?eex, *.html</mask>
     <mask>*.ex</mask>
     <mask>*.rb</mask>
+    <mask>*.nix</mask>
   </component>
 </application>
\ No newline at end of file