diff --git a/src/A3.cpp b/src/A3.cpp
index e0a0ade8c..0daea2045 100644
--- a/src/A3.cpp
+++ b/src/A3.cpp
@@ -118,7 +118,6 @@ const int safetyValveDefault = 10;
 
 ////////////////////////////////////////////////////////////////////////////////
 A3::A3 ()
-: _read_only_command (true)
 {
 }
 
@@ -126,15 +125,12 @@ A3::A3 ()
 A3::A3 (const A3& other)
 {
   std::vector <Arg>::operator= (other);
-  _read_only_command = other._read_only_command;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 A3& A3::operator= (const A3& other)
 {
   std::vector <Arg>::operator= (other);
-  _read_only_command = other._read_only_command;
-
   return *this;
 }
 
@@ -237,7 +233,6 @@ void A3::categorize ()
       {
         found_command = true;
         arg->_category = Arg::cat_command;
-        _read_only_command = context.commands[arg->_raw]->read_only ();
       }
 
       // rc:<file>
diff --git a/src/A3.h b/src/A3.h
index 86c921f17..4db7a578e 100644
--- a/src/A3.h
+++ b/src/A3.h
@@ -94,9 +94,6 @@ public:
   static bool which_operator (const std::string&, char&, int&, char&);
 
   void dump (const std::string&) const;
-
-private:
-  bool _read_only_command;
 };
 
 #endif