diff --git a/bitcoin/chainparams.h b/bitcoin/chainparams.h
index 5709cc1e2..a0fd5b813 100644
--- a/bitcoin/chainparams.h
+++ b/bitcoin/chainparams.h
@@ -11,8 +11,8 @@ struct chainparams {
 	const char *network_name;
 	const struct sha256_double genesis_blockhash;
 	const int rpc_port;
-	char *cli;
-	char *cli_args;
+	const char *cli;
+	const char *cli_args;
 	const u64 dust_limit;
 
 	/* Whether this is a test network or not */
diff --git a/daemon/bitcoind.c b/daemon/bitcoind.c
index bc010d80e..3f1a2752b 100644
--- a/daemon/bitcoind.c
+++ b/daemon/bitcoind.c
@@ -30,8 +30,8 @@ static char **gather_args(struct bitcoind *bitcoind,
 	size_t n = 0;
 	char **args = tal_arr(ctx, char *, 3);
 
-	args[n++] = bitcoind->chainparams->cli;
-	args[n++] = bitcoind->chainparams->cli_args;
+	args[n++] = cast_const(char *, bitcoind->chainparams->cli);
+	args[n++] = cast_const(char *, bitcoind->chainparams->cli_args);
 
 	if (bitcoind->datadir) {
 		args[n++] = tal_fmt(args, "-datadir=%s", bitcoind->datadir);