diff --git a/src/resolve/resolved-dns-dnssec.c b/src/resolve/resolved-dns-dnssec.c
index 859fb27043..cdc89771d5 100644
--- a/src/resolve/resolved-dns-dnssec.c
+++ b/src/resolve/resolved-dns-dnssec.c
@@ -989,8 +989,9 @@ int dnssec_verify_rrset(
 
         DnsResourceRecord **list, *rr;
         const char *source, *name;
-        size_t n = 0, sig_size;
         _cleanup_free_ char *sig_data = NULL;
+        size_t sig_size = 0; /* avoid false maybe-uninitialized warning */
+        size_t n = 0;
         bool wildcard;
         int r;