diff --git a/xcm/xcm-executor/src/lib.rs b/xcm/xcm-executor/src/lib.rs
index a48cd3259d67..d1fc7ed2233b 100644
--- a/xcm/xcm-executor/src/lib.rs
+++ b/xcm/xcm-executor/src/lib.rs
@@ -569,8 +569,8 @@ impl<Config: config::Config> XcmExecutor<Config> {
 						},
 					};
 				let actual_weight = maybe_actual_weight.unwrap_or(weight);
-				let surplus = weight.saturating_sub(actual_weight);
-				// We assume that the `Config::Weigher` will counts the `require_weight_at_most`
+				let surplus = require_weight_at_most.saturating_sub(actual_weight);
+				// We assume that the `Config::Weigher` will count the `require_weight_at_most`
 				// for the estimate of how much weight this instruction will take. Now that we know
 				// that it's less, we credit it.
 				//