diff --git a/fuzz/ct.c b/fuzz/ct.c
index 0abcd8aa97d30a96b1f157f1bf2c1ee840d526ac..411ccef4a06e54cc53c8f7a2103d33ba9ed55519 100644
--- a/fuzz/ct.c
+++ b/fuzz/ct.c
@@ -29,7 +29,9 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len) {
         SCT_LIST_print(scts, bio, 4, "\n", NULL);
         BIO_free(bio);
 
-        i2d_SCT_LIST(scts, &der);
+        if (i2d_SCT_LIST(scts, &der)) {
+            /* Silence unused result warning */
+        }
         OPENSSL_free(der);
 
         SCT_LIST_free(scts);