diff --git a/code/modules/wiremod/components/math/binary_conversion.dm b/code/modules/wiremod/components/math/binary_conversion.dm
index 8d90019b28c..8ef4067b955 100644
--- a/code/modules/wiremod/components/math/binary_conversion.dm
+++ b/code/modules/wiremod/components/math/binary_conversion.dm
@@ -37,6 +37,15 @@
 	if(!length(bit_array))
 		return
 
-	for(var/iteration in 1 to length(bit_array))
+	var/to_convert = number.value
+	var/is_negative
+	if(number.value < 0)
+		is_negative = TRUE
+		to_convert = -to_convert
+	var/len = length(bit_array)
+	for(var/iteration in 1 to len)
 		var/datum/port/output/bit = bit_array[iteration]
-		bit.set_output(number.value & (2 ** (iteration - 1)))
+		if(iteration == 1 && is_negative)
+			bit.set_output(1)
+			continue
+		bit.set_output(!!(to_convert & (1<< (len - iteration))))