diff --git a/README.md b/README.md
index 30912efac2f4eed00247a6c2f3454268ad361ded..04dd8958530f2d24718577bf47c7912ab4d31ad5 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ generate.py is a python program that generates a vagrant source file from a defi
 ### Usage:
 1. Clone the project.
 2. Navigate to the project folder.
-3. Type `$ python generate.py yaml_file.yaml`. There is a test yaml file in the repository called test.yaml.
+3. Type `$ python3 generate.py yaml_file.yaml`. There is a test yaml file in the repository called test.yaml.
 4. Run `$ vagrant up`
 
 ### Input yaml file structure
diff --git a/templates/host b/templates/host
index 7eff419fd68c027950ad4f235131866865fa05d2..79920e810b04e40a72151972f6507786a335594d 100644
--- a/templates/host
+++ b/templates/host
@@ -5,7 +5,7 @@
   tasks:
 
   - name: Change default gateway
-    sudo: yes
+    become: yes
     command: route add default gw {{ host.router_ip }} enp0s8
 
 {% endfor %}
diff --git a/templates/router b/templates/router
index 94654d6b08ecf33dedc3443cbf49eb04b43a7d14..9bd457e948dc5ca56e0e667f0e5d3b7dedfc30d9 100644
--- a/templates/router
+++ b/templates/router
@@ -5,13 +5,13 @@
   tasks:
 
   - name: Enable IP forwarding
-    sudo: yes
+    become: yes
     copy:
       dest: "/etc/sysctl.conf"
       content: "net.ipv4.ip_forward=1"
 
   - name: Restarting procps service
-    sudo: yes
+    become: yes
     command: /etc/init.d/procps restart
 
 {% endfor %}