diff --git a/hosts/randolph/home.nix b/hosts/randolph/home.nix
index a4443ba..d5787d1 100644
--- a/hosts/randolph/home.nix
+++ b/hosts/randolph/home.nix
@@ -216,6 +216,7 @@ in {
       "application/x-shellscript"
       "text/x-c"
       "text/x-c++"
+      "text/x-devicetree-source"
     ];
     categories = [ "Utility" "TextEditor" ];
   };