diff --git a/wallet/reservation.c b/wallet/reservation.c
index 41ba958f9..de9b5ed37 100644
--- a/wallet/reservation.c
+++ b/wallet/reservation.c
@@ -434,29 +434,6 @@ static inline u32 minconf_to_maxheight(u32 minconf, struct lightningd *ld)
 	return ld->topology->tip->height - minconf + 1;
 }
 
-static struct command_result *param_reserve_num(struct command *cmd,
-						const char *name,
-						const char *buffer,
-						const jsmntok_t *tok,
-						unsigned int **num)
-{
-	bool flag;
-
-	if (deprecated_apis) {
-		/* "reserve=true" means 6 hours */
-		if (json_to_bool(buffer, tok, &flag)) {
-			*num = tal(cmd, unsigned int);
-			if (flag)
-				**num = RESERVATION_DEFAULT;
-			else
-				**num = 0;
-			return NULL;
-		}
-	}
-
-	return param_number(cmd, name, buffer, tok, num);
-}
-
 static struct command_result *json_fundpsbt(struct command *cmd,
 					      const char *buffer,
 					      const jsmntok_t *obj UNNEEDED,
@@ -474,7 +451,7 @@ static struct command_result *json_fundpsbt(struct command *cmd,
 		   p_req("feerate", param_feerate, &feerate_per_kw),
 		   p_req("startweight", param_number, &weight),
 		   p_opt_def("minconf", param_number, &minconf, 1),
-		   p_opt_def("reserve", param_reserve_num, &reserve,
+		   p_opt_def("reserve", param_number, &reserve,
 			     RESERVATION_DEFAULT),
 		   p_opt("locktime", param_number, &locktime),
 		   p_opt_def("min_witness_weight", param_number,
@@ -655,7 +632,7 @@ static struct command_result *json_utxopsbt(struct command *cmd,
 		   p_req("feerate", param_feerate, &feerate_per_kw),
 		   p_req("startweight", param_number, &weight),
 		   p_req("utxos", param_txout, &utxos),
-		   p_opt_def("reserve", param_reserve_num, &reserve,
+		   p_opt_def("reserve", param_number, &reserve,
 			     RESERVATION_DEFAULT),
 		   p_opt_def("reservedok", param_bool, &reserved_ok, false),
 		   p_opt("locktime", param_number, &locktime),