diff --git a/data/hooks/conf_regen/43-dnsmasq b/data/hooks/conf_regen/43-dnsmasq
index 0370d10b4..7f65b9494 100755
--- a/data/hooks/conf_regen/43-dnsmasq
+++ b/data/hooks/conf_regen/43-dnsmasq
@@ -26,11 +26,11 @@ do_pre_regen() {
     ynh_validate_ip4 "$ipv4" || ipv4='127.0.0.1'
     ipv6=$(curl -s -6 https://ip6.yunohost.org 2>/dev/null || true)
     ynh_validate_ip6 "$ipv6" || ipv6=''
-    IFS=' ' read -a interfaces <<< "$(ls /sys/class/net)"
-    wireless_interfaces=()
+    interfaces="$(ls /sys/class/net)"
+    wireless_interfaces=""
     for dev in "${interfaces[@]}"; do
         if [ -d "/sys/class/net/$dev/wireless" ]; then
-            wireless_interfaces+=("$dev")
+            wireless_interfaces+=" $dev"
         fi
     done
 
diff --git a/data/templates/dnsmasq/dnsmasq.conf.tpl b/data/templates/dnsmasq/dnsmasq.conf.tpl
index ac4d125de..eece530dc 100644
--- a/data/templates/dnsmasq/dnsmasq.conf.tpl
+++ b/data/templates/dnsmasq/dnsmasq.conf.tpl
@@ -2,8 +2,8 @@ domain-needed
 expand-hosts
 localise-queries
 
-
-{% for interface in wireless_interfaces %}
+{% set interfaces = wireless_interfaces.strip().split(' ') %}
+{% for interface in interfaces %}
 interface={{ interface }}
 {% endfor %}
 resolv-file=/etc/resolv.dnsmasq.conf
diff --git a/data/templates/dnsmasq/domain.tpl b/data/templates/dnsmasq/domain.tpl
index faa93954c..50b946176 100644
--- a/data/templates/dnsmasq/domain.tpl
+++ b/data/templates/dnsmasq/domain.tpl
@@ -1,4 +1,5 @@
-{% for interface in interfaces %}
+{% set interfaces_list = interfaces.split(' ') %}
+{% for interface in interfaces_list %}
 interface-name={{ domain }},{{ interface }}
 interface-name=xmpp-upload.{{ domain }},{{ interface }}
 {% endfor %}