diff --git a/pmb/config/init.py b/pmb/config/init.py
index 7bcb0e90..9ca5bd30 100644
--- a/pmb/config/init.py
+++ b/pmb/config/init.py
@@ -121,7 +121,7 @@ def init(args):
                  " or \"none\"")
     cfg["pmbootstrap"]["extra_packages"] = pmb.helpers.cli.ask(args, "Extra packages",
                                                                None, args.extra_packages,
-                                                               validation_regex="^(|[-\w\s]+(?:,[-\w\s]*)*)$")
+                                                               validation_regex="^(|[-.+\w\s]+(?:,[-.+\w\s]*)*)$")
 
     # Do not save aports location to config file
     del cfg["pmbootstrap"]["aports"]