diff --git a/test/cases/ostree-ng.sh b/test/cases/ostree-ng.sh
index 7fa9f4ae6..ba510d46f 100755
--- a/test/cases/ostree-ng.sh
+++ b/test/cases/ostree-ng.sh
@@ -705,7 +705,7 @@ ansible_ssh_common_args="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=rhel-edge -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=rhel-edge -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Final success clean up
diff --git a/test/cases/ostree-raw-image.sh b/test/cases/ostree-raw-image.sh
index 2609c0951..f49471fb2 100755
--- a/test/cases/ostree-raw-image.sh
+++ b/test/cases/ostree-raw-image.sh
@@ -454,7 +454,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Clean up BIOS VM
@@ -527,7 +527,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 ##################################################################
@@ -663,7 +663,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Final success clean up
diff --git a/test/cases/ostree-simplified-installer.sh b/test/cases/ostree-simplified-installer.sh
index 17c6c91e4..4afd927d8 100755
--- a/test/cases/ostree-simplified-installer.sh
+++ b/test/cases/ostree-simplified-installer.sh
@@ -508,7 +508,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Clean up BIOS VM
@@ -585,7 +585,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${INSTALL_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 ##################################################################
@@ -720,7 +720,7 @@ ansible_become_pass=${EDGE_USER_PASSWORD}
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=redhat -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Final success clean up
diff --git a/test/cases/ostree.sh b/test/cases/ostree.sh
index 293b4b1bc..f2b9a1768 100755
--- a/test/cases/ostree.sh
+++ b/test/cases/ostree.sh
@@ -547,7 +547,7 @@ ansible_ssh_common_args="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/
 EOF
 
 # Test IoT/Edge OS
-sudo ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=${IMAGE_TYPE} -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
+sudo ansible-playbook -v -i "${TEMPDIR}"/inventory -e image_type=${IMAGE_TYPE} -e ostree_commit="${UPGRADE_HASH}" /usr/share/tests/osbuild-composer/ansible/check_ostree.yaml || RESULTS=0
 check_result
 
 # Final success clean up