diff --git a/test/Makefile.am b/test/Makefile.am
index f3e6536ea..fafeb436e 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -558,6 +558,7 @@ REFERENCE_IMAGES = \
 	large-clip.ref.png \
 	large-font.ref.png \
 	large-source.ref.png \
+	large-source-roi.ref.png \
 	leaky-dash.ps2.argb32.ref.png \
 	leaky-dash.ps2.rgb24.ref.png \
 	leaky-dash.ps3.argb32.ref.png \