diff --git a/tasks/install-from-source.yml b/tasks/install-from-source.yml
index 4a1401a..b4afd2b 100644
--- a/tasks/install-from-source.yml
+++ b/tasks/install-from-source.yml
@@ -8,7 +8,7 @@
     force: true
 
 - name: Install certbot-dns-digitalocean
-  shell: "cd {{certbot_dir}}/{{ item }} && python setup.py install"
+  shell: "cd {{certbot_dir}}/{{ item }} && {{ python_executable }} setup.py install"
   with_items: "{{ certbot_dns_providers }}"
 
 - name: Set Certbot script variable.
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..c773587
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,3 @@
+---
+certbot_package: certbot
+python_executable: python3
diff --git a/vars/Ubuntu-16.04.yml b/vars/Ubuntu-16.04.yml
index 83cf124..39c0c84 100644
--- a/vars/Ubuntu-16.04.yml
+++ b/vars/Ubuntu-16.04.yml
@@ -1,2 +1,3 @@
 ---
 certbot_package: letsencrypt
+python_executable: python3
diff --git a/vars/default.yml b/vars/default.yml
index d88f2dc..c773587 100644
--- a/vars/default.yml
+++ b/vars/default.yml
@@ -1,2 +1,3 @@
 ---
 certbot_package: certbot
+python_executable: python3