diff --git a/modules/office/default.nix b/modules/office/default.nix
index 74a21d7..c1b552b 100644
--- a/modules/office/default.nix
+++ b/modules/office/default.nix
@@ -20,6 +20,8 @@ in
         gnome3.simple-scan
         # Tools like pdfunite
         poppler_utils
+        # tool for annotating PDFs
+        xournalpp
       ];
     };
   };