diff --git a/aruco_pose/test/basic.py b/aruco_pose/test/basic.py
index 48e739a3..60f35af2 100755
--- a/aruco_pose/test/basic.py
+++ b/aruco_pose/test/basic.py
@@ -140,7 +140,7 @@ def test_map_image(node):
     img = rospy.wait_for_message('aruco_map/image', Image, timeout=5)
     assert img.width == 2000
     assert img.height == 2000
-    assert img.encoding == 'mono8'
+    assert (img.encoding == 'mono8') or (img.encoding == 'rgb8')
 
 def test_map_markers(node):
     markers = rospy.wait_for_message('aruco_map/markers', MarkerArray, timeout=5)