diff --git a/src/stv/mod.rs b/src/stv/mod.rs
index 53b787a..27a2ef7 100644
--- a/src/stv/mod.rs
+++ b/src/stv/mod.rs
@@ -165,8 +165,8 @@ impl STVOptions {
 		let mut flags = Vec::new();
 		let n_str = N::describe_opt(); if !n_str.is_empty() { flags.push(N::describe_opt()) };
 		if self.surplus != SurplusMethod::Cincinnati && self.surplus != SurplusMethod::Hare {
-			if let Some(dps) = self.round_surplus_fractions { flags.push(format!("--round-tvs {}", dps)); }
-			if let Some(dps) = self.round_values { flags.push(format!("--round-weights {}", dps)); }
+			if let Some(dps) = self.round_surplus_fractions { flags.push(format!("--round-surplus-fractions {}", dps)); }
+			if let Some(dps) = self.round_values { flags.push(format!("--round-values {}", dps)); }
 			if let Some(dps) = self.round_votes { flags.push(format!("--round-votes {}", dps)); }
 		}
 		if let Some(dps) = self.round_quota { flags.push(format!("--round-quota {}", dps)); }