diff --git a/install/install.py b/install/install.py
index 78b8e642c..1c6cb9bb0 100644
--- a/install/install.py
+++ b/install/install.py
@@ -2880,7 +2880,7 @@ class preFlightsChecks:
 
             if self.distro == ubuntu:
                 command = 'apt install opendkim-tools'
-                subprocess.call(shlex.split(command))
+                subprocess.call(shlex.split(command)):
 
                 command = 'mkdir -p /etc/opendkim/keys/'
                 subprocess.call(shlex.split(command))