diff --git a/ddclient.in b/ddclient.in
index 7f48f98..017d808 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -7320,7 +7320,7 @@ sub nic_infomaniak_update {
         for my $v (4, 6) {
             my $ip = delete $config{$h}{"wantipv$v"};
             if (!defined $ip) {
-                debug("ipv%d not wanted, skipping", $v);
+                debug("IPv$v not wanted, skipping");
                 next;
             }
             info("setting IP address to %s for %s", $ip, $h);
@@ -7331,10 +7331,10 @@ sub nic_infomaniak_update {
             # IP changed => good <xxxx::yyyy>
             # No domain name => Validation failed
             my %statuses = (
-                'good' => (1, sprintf("IP set to %s for %s", $ip, $h)),
-                'nochg' => (1, sprintf("IP already set to %s for %s", $ip, $h)),
-                'nohost' => (0, sprintf("Bad domain name %s or bad IP %s", $h, $ip)),
-                'badauth' => (0, sprintf("Bad authentication for %s", $h)),
+                'good' => (1, "IP set to $ip for $h"),
+                'nochg' => (1, "IP already set to $ip for $h"),
+                'nohost' => (0, "Bad domain name $h or bad IP $ip"),
+                'badauth' => (0, "Bad authentication for $h"),
             );
             my $reply = geturl(
                 proxy => opt('proxy'),
@@ -7346,7 +7346,7 @@ sub nic_infomaniak_update {
             (my $body = $reply) =~ s/^.*?\n\n//s;
             my ($status) = split(/ /, $body, 2);
             my ($ok, $msg) =
-                $statuses{$status} // (0, sprintf("Unknown reply from Infomaniak: %s", $body));
+                $statuses{$status} // (0, "Unknown reply from Infomaniak: $body");
             if (!$ok) {
                 failed($msg);
                 next;