diff --git a/src/hence/firmware/documentation.md.ecr b/src/hence/firmware/documentation.md.ecr
index 693d6a4..048d5b7 100644
--- a/src/hence/firmware/documentation.md.ecr
+++ b/src/hence/firmware/documentation.md.ecr
@@ -29,7 +29,7 @@ Opcode | Name
 <% output = " " + output unless output.blank? -%>
 Opcode | Argument | Stack
 ---|---|---
-`0x<%= sorted_opcodes.find! { |opc| opc[1].name == opcode.name }[0].to_s(16).rjust(2, '0') %>` | <%= opcode.arg && "`#{opcode.arg}`" %> | <%= (opcode.stack.input.size > 0 && opcode.stack.output.size > 0) ? "`#{input}--#{output}`" : nil %>
+`0x<%= sorted_opcodes.find! { |opc| opc[1].name == opcode.name }[0].to_s(16).rjust(2, '0') %>` | <%= opcode.arg && "`#{opcode.arg}`" %> | <%= (opcode.stack.input.size > 0 || opcode.stack.output.size > 0) ? "`#{input}--#{output}`" : nil %>
 <%- if opcode.example -%>
 
 ```gnuassembler