diff --git a/Machines/Enterprise/Nick.hpp b/Machines/Enterprise/Nick.hpp
index 3092895de..fa9e670f7 100644
--- a/Machines/Enterprise/Nick.hpp
+++ b/Machines/Enterprise/Nick.hpp
@@ -94,9 +94,6 @@ class Nick {
 		bool vres_ = false;
 		bool reload_line_parameter_pointer_ = false;
 
-		// An accumulator for border output regions.
-		int border_duration_ = 0;
-
 		// The destination for new pixels.
 		static constexpr int allocation_size = 336;
 		static_assert((allocation_size % 16) == 0, "Allocation size must be a multiple of 16");