diff --git a/gfx/map/terrain/masks/coastline_cliff_grey_mask.png b/gfx/map/terrain/masks/coastline_cliff_grey_mask.png
deleted file mode 100644
index a4255692b..000000000
--- a/gfx/map/terrain/masks/coastline_cliff_grey_mask.png
+++ /dev/null
@@ -1,3 +0,0 @@
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