diff --git a/tests/qemu-iotests/183 b/tests/qemu-iotests/183
index 20268ff7a11e9e426bebf1e791206fc980d21687..c49e1ad6efb2564e811f67b8c294af19e79ae4b3 100755
--- a/tests/qemu-iotests/183
+++ b/tests/qemu-iotests/183
@@ -43,7 +43,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 . ./common.filter
 . ./common.qemu
 
-_supported_fmt qcow2 raw qed dmg quorum
+_supported_fmt qcow2 raw qed quorum
 _supported_proto file
 _supported_os Linux
 
diff --git a/tests/qemu-iotests/194 b/tests/qemu-iotests/194
index 1d4214aca31e842d0881a2c697feaa7059d4292d..d746ab1e21864ec2d3d94b0911c232fda97c19bd 100755
--- a/tests/qemu-iotests/194
+++ b/tests/qemu-iotests/194
@@ -21,7 +21,7 @@
 
 import iotests
 
-iotests.verify_image_format(supported_fmts=['qcow2', 'qed', 'raw', 'dmg'])
+iotests.verify_image_format(supported_fmts=['qcow2', 'qed', 'raw'])
 iotests.verify_platform(['linux'])
 
 with iotests.FilePath('source.img') as source_img_path, \