diff --git a/ports/unix/variants/coverage/mpconfigvariant.mk b/ports/unix/variants/coverage/mpconfigvariant.mk
index 69996b2839..563b5ad860 100644
--- a/ports/unix/variants/coverage/mpconfigvariant.mk
+++ b/ports/unix/variants/coverage/mpconfigvariant.mk
@@ -31,18 +31,21 @@ SRC_BITMAP := \
 	$(patsubst ../../%,%,$(wildcard ../../shared-bindings/gifio/*.c ../../shared-module/gifio/*.c)) \
 	shared/runtime/context_manager_helpers.c \
 	displayio_min.c \
+	shared-bindings/bitmaptools/__init__.c \
 	shared-bindings/displayio/Bitmap.c \
+	shared-bindings/rainbowio/__init__.c \
+	shared-bindings/util.c \
+	shared-module/bitmaptools/__init__.c \
 	shared-module/displayio/area.c \
 	shared-module/displayio/Bitmap.c \
 	shared-module/displayio/ColorConverter.c \
-	shared-bindings/bitmaptools/__init__.c \
-	shared-module/bitmaptools/__init__.c \
-	shared-bindings/util.c \
+	shared-module/displayio/ColorConverter.c \
+	shared-module/rainbowio/__init__.c \
 
 $(info $(SRC_BITMAP))
 SRC_C += $(SRC_BITMAP)
 
-CFLAGS += -DCIRCUITPY_GIFIO=1 -DCIRCUITPY_DISPLAYIO_UNIX=1 -DCIRCUITPY_BITMAPTOOLS=1
+CFLAGS += -DCIRCUITPY_GIFIO=1 -DCIRCUITPY_DISPLAYIO_UNIX=1 -DCIRCUITPY_BITMAPTOOLS=1 -DCIRCUITPY_RAINBOWIO=1
 
 SRC_C += coverage.c
 SRC_CXX += coveragecpp.cpp
diff --git a/tests/unix/extra_coverage.py.exp b/tests/unix/extra_coverage.py.exp
index 4be6b20d5d..278c6601a3 100644
--- a/tests/unix/extra_coverage.py.exp
+++ b/tests/unix/extra_coverage.py.exp
@@ -34,11 +34,11 @@ binascii        bitmaptools     btree           cexample
 cmath           collections     cppexample      displayio
 errno           ffi             framebuf        gc
 gifio           hashlib         json            math
-qrio            re              sys             termios
-ubinascii       uctypes         uerrno          uheapq
-uio             ujson           ulab            uos
-urandom         ure             uselect         ustruct
-utime           utimeq          uzlib
+qrio            rainbowio       re              sys
+termios         ubinascii       uctypes         uerrno
+uheapq          uio             ujson           ulab
+uos             urandom         ure             uselect
+ustruct         utime           utimeq          uzlib
 ime
 
 utime           utimeq