diff --git a/nixos/tests/powerdns.nix b/nixos/tests/powerdns.nix
index 70060bad87b6..d3708d25f0fb 100644
--- a/nixos/tests/powerdns.nix
+++ b/nixos/tests/powerdns.nix
@@ -47,7 +47,9 @@ import ./make-test-python.nix ({ pkgs, lib, ... }: {
     with subtest("Adding an example zone works"):
         # Extract configuration file needed by pdnsutil
         unit = server.succeed("systemctl cat pdns")
-        conf = re.search("(--config-dir=[^ ]+)", unit).group(1)
+        match = re.search("(--config-dir=[^ ]+)", unit)
+        assert(match is not None)
+        conf = match.group(1)
         pdnsutil = "sudo -u pdns pdnsutil " + conf
         server.succeed(f"{pdnsutil} create-zone example.com ns1.example.com")
         server.succeed(f"{pdnsutil} add-record  example.com ns1 A 192.168.1.2")
diff --git a/pkgs/servers/dns/pdns/default.nix b/pkgs/servers/dns/pdns/default.nix
index 9dddfb03089d..beee5d3a4d77 100644
--- a/pkgs/servers/dns/pdns/default.nix
+++ b/pkgs/servers/dns/pdns/default.nix
@@ -4,12 +4,12 @@
 }:
 
 stdenv.mkDerivation rec {
-  pname = "powerdns";
-  version = "4.6.2";
+  pname = "pdns";
+  version = "4.6.3";
 
   src = fetchurl {
     url = "https://downloads.powerdns.com/releases/pdns-${version}.tar.bz2";
-    hash = "sha256-9EOEiUS7Ebu0hQIhYTs6Af+1f+vyZx2myqVzYu4LGbg=";
+    hash = "sha256-rNBricoB0a32G5BmBGFPDh13oelO7srej/XVOhbbc4k=";
   };
   # redact configure flags from version output to reduce closure size
   patches = [ ./version.patch ];