diff --git a/lib/libnetwork.lib.in b/lib/libnetwork.lib.in
index 90ae8e0..7b92977 100644
--- a/lib/libnetwork.lib.in
+++ b/lib/libnetwork.lib.in
@@ -98,7 +98,7 @@ function repository.get_srpm_pckname_from_site() {
    notify.debug "$FUNCNAME: infile = \"$infile\""
 
    local regexpr
-   [[ "$pck_name" =~ ^[a-zA-Z0-9_-]+$ ]] && \
+   [[ "$pck_name" =~ ^[+a-zA-Z0-9_-]+$ ]] && \
       regexpr="^$pck_name-[^-]\+-[^-]\+$" || regexpr="$pck_name"
    notify.debug "$FUNCNAME: regexpr = \"$regexpr\""