diff --git a/features/environment.py b/features/environment.py
index d89c848c67..b838775e4f 100644
--- a/features/environment.py
+++ b/features/environment.py
@@ -256,7 +256,13 @@ def from_environ(cls, config) -> "UAClientBehaveConfig":
                 kwargs[key] = bool_value
 
         if "install_from" in kwargs:
-            kwargs["install_from"] = InstallationSource(kwargs["install_from"])
+            if str(kwargs["install_from"]).startswith("ppa:"):
+                kwargs["custom_ppa"] = kwargs["install_from"]
+                kwargs["install_from"] = InstallationSource.CUSTOM
+            else:
+                kwargs["install_from"] = InstallationSource(
+                    kwargs["install_from"]
+                )
 
         return cls(**kwargs)  # type: ignore