diff --git a/test/gfx/color_curve.flags b/test/gfx/color_curve.flags
new file mode 100644
index 00000000..d51cca21
--- /dev/null
+++ b/test/gfx/color_curve.flags
@@ -0,0 +1 @@
+-C
diff --git a/test/gfx/color_curve.out.2bpp b/test/gfx/color_curve.out.2bpp
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index 00000000..971f04f4
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diff --git a/test/gfx/color_curve.out.pal b/test/gfx/color_curve.out.pal
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index 00000000..c7318719
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diff --git a/test/gfx/color_curve.png b/test/gfx/color_curve.png
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index 00000000..316b6e9a
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