diff --git a/data/art/curses_small_letters - top-left.png b/data/art/curses-small-letters-top-left.png
similarity index 100%
rename from data/art/curses_small_letters - top-left.png
rename to data/art/curses-small-letters-top-left.png
diff --git a/data/art/on-off - top-left.png b/data/art/on-off-top-left.png
similarity index 100%
rename from data/art/on-off - top-left.png
rename to data/art/on-off-top-left.png