diff --git a/programs/fuzz/fuzz_x509crl.c b/programs/fuzz/fuzz_x509crl.c
index fbfdfe8..15affb5 100644
--- a/programs/fuzz/fuzz_x509crl.c
+++ b/programs/fuzz/fuzz_x509crl.c
@@ -15,6 +15,7 @@
     }
 #else
     ((void) ret);
+    ((void) buf);
 #endif /* !MBEDTLS_X509_REMOVE_INFO */
     mbedtls_x509_crl_free( &crl );
 #else