diff --git a/tests/letstest/apache2_targets.yaml b/tests/letstest/apache2_targets.yaml
index 5ee2632a0..c30cc92fa 100644
--- a/tests/letstest/apache2_targets.yaml
+++ b/tests/letstest/apache2_targets.yaml
@@ -33,6 +33,12 @@ targets:
     type: ubuntu
     virt: hvm
     user: admin
+  - ami: ami-0ed54dd1b25657636
+    name: debian9_arm64
+    type: ubuntu
+    virt: hvm
+    user: admin
+    machine_type: a1.medium
   - ami: ami-077bf3962f29d3fa4
     name: debian8.1
     type: ubuntu
diff --git a/tests/letstest/multitester.py b/tests/letstest/multitester.py
index 7bc4e034d..2870aaa09 100644
--- a/tests/letstest/multitester.py
+++ b/tests/letstest/multitester.py
@@ -307,7 +307,9 @@ def grab_certbot_log():
 
 def create_client_instance(ec2_client, target, security_group_id, subnet_id):
     """Create a single client instance for running tests."""
-    if target['virt'] == 'hvm':
+    if 'machine_type' in target:
+        machine_type = target['machine_type']
+    elif target['virt'] == 'hvm':
         machine_type = 't2.medium' if cl_args.fast else 't2.micro'
     else:
         # 32 bit systems
diff --git a/tests/letstest/targets.yaml b/tests/letstest/targets.yaml
index 547c33ffa..73332a468 100644
--- a/tests/letstest/targets.yaml
+++ b/tests/letstest/targets.yaml
@@ -33,6 +33,12 @@ targets:
     type: ubuntu
     virt: hvm
     user: admin
+  - ami: ami-0ed54dd1b25657636
+    name: debian9_arm64
+    type: ubuntu
+    virt: hvm
+    user: admin
+    machine_type: a1.medium
   - ami: ami-077bf3962f29d3fa4
     name: debian8.1
     type: ubuntu