diff --git a/modules/install/ToolsInstaller.py b/modules/install/ToolsInstaller.py
index 42e8156..d494c79 100644
--- a/modules/install/ToolsInstaller.py
+++ b/modules/install/ToolsInstaller.py
@@ -44,15 +44,12 @@ class ToolsInstaller:
             else:
                 print("Version not supported by this installer")
                 return
+            
+            base_url = f"https://download.docker.com/linux/${linux_distro}"
 
-            subprocess.run("curl -fsSL "
-                           f"https://download.docker.com/linux/${linux_distro}/gpg "
-                           "| sudo apt-key add -",
-                           shell=True)
+            subprocess.run("curl -fsSL " + base_url + "/gpg | sudo apt-key add -", shell=True)
             subprocess.run("apt-key fingerprint 0EBFCD88", shell=True)
-            subprocess.run("add-apt-repository \"deb [arch=amd64] "
-                           f"https://download.docker.com/linux/${linux_distro}"
-                           "$(lsb_release -cs) stable\"",
+            subprocess.run("add-apt-repository \"deb [arch=amd64] " + base_url + " $(lsb_release -cs) stable\"",
                            shell=True)
         else:
             print("skip adding of the key")