diff --git a/CONTRIBUTIONS.md b/CONTRIBUTIONS.md
index c54f4d0b..9b267510 100644
--- a/CONTRIBUTIONS.md
+++ b/CONTRIBUTIONS.md
@@ -20,6 +20,7 @@ for details!
 * [Anatoly Bubenkov](mailto:bubenkoff@gmail.com) (@bubenkoff)
 * [Ben Harris](mailto:mail@bharr.is) (@bharrisau)
 * [Daniel Ziegenberg](mailto:daniel@ziegenberg.at) (@ziegenberg)
+* [Filipe Santos](mailto:git@not.sh) (horjulf)
 * [Ignacio Serrano](mailto:ignic@ignic.com) (@ignic)
 * [Ilya Kulakov](mailto:kulakov.ilya@gmail.com) (@Kentzo)
 * [Leonardo David Monteiro](mailto:leo@cub3.xyz) (@leosfsm)
diff --git a/fw-addr-lists.rsc b/fw-addr-lists.rsc
index 1c3fe355..b3a39b06 100644
--- a/fw-addr-lists.rsc
+++ b/fw-addr-lists.rsc
@@ -70,7 +70,7 @@
       :local Data false;
       :local TimeOut [ $EitherOr [ :totime ($List->"timeout") ] $FwAddrListTimeOut ];
 
-      :foreach Cert in=[ :toarray delimiter=":" ($List->"cert") ] do={
+      :foreach Cert in=[ :toarray delimiter=":" [ :tostr ($List->"cert") ] ] do={
         :if ([ :len ($Cert) ] > 0) do={
           :set CheckCertificate true;
           :if ([ $CertificateAvailable $Cert "fetch" ] = false) do={
diff --git a/netwatch-dns.rsc b/netwatch-dns.rsc
index a1c6b0f6..ed4fd1f4 100644
--- a/netwatch-dns.rsc
+++ b/netwatch-dns.rsc
@@ -99,7 +99,7 @@
   }
 
   :foreach DohServer in=$DohServers do={
-    :foreach DohCert in=[ :toarray delimiter=":" ($DohServer->"doh-cert") ] do={
+    :foreach DohCert in=[ :toarray delimiter=":" [ :tostr ($DohServer->"doh-cert") ] ] do={
       :if ([ :len $DohCert ] > 0) do={
         :if ([ $CertificateAvailable $DohCert "fetch" ] = false || \
              [ $CertificateAvailable $DohCert "dns" ] = false) do={