diff --git a/HACKING.md b/HACKING.md
index 6b33554..d6aa949 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -1,8 +1,12 @@
 # Blueprint files
 
-When adding a new Blueprint file in `data/res/`, remember to add it to both, the
-list of bluprint sources in `data/res/meson.build` and the list of resources in
-`data/res/musicus.gresource.xml` (`.blp` replaced with `.ui`).
+When adding a new Blueprint file in `data/res/`, remember to add it to the
+following file lists:
+
+ - list of bluprint sources in `data/res/meson.build`
+ - list of resources in `data/res/musicus.gresource.xml` (`.blp` replaced with
+   `.ui`)
+ - list of translatable files in `po/POTFILES`
 
 # Internationalization