diff --git a/lib/register/instructions/get_byte.rb b/lib/register/instructions/get_byte.rb
index e33bb412..b888953d 100644
--- a/lib/register/instructions/get_byte.rb
+++ b/lib/register/instructions/get_byte.rb
@@ -16,10 +16,6 @@ module Register
     # end
     # attr_accessor :array , :index , :register
 
-    def to_s
-      "GetByte: #{array}[#{index}] -> #{register}"
-    end
-
   end
 
   # Produce a GetByte instruction.
diff --git a/lib/register/instructions/get_slot.rb b/lib/register/instructions/get_slot.rb
index 004e4c23..ad9f6f4e 100644
--- a/lib/register/instructions/get_slot.rb
+++ b/lib/register/instructions/get_slot.rb
@@ -20,10 +20,6 @@ module Register
     # end
     # attr_accessor :array , :index , :register
 
-    def to_s
-      "GetSlot: #{array}[#{index}] -> #{register}"
-    end
-
   end
 
   # Produce a GetSlot instruction.
diff --git a/lib/register/instructions/getter.rb b/lib/register/instructions/getter.rb
index 3921fd04..c3292355 100644
--- a/lib/register/instructions/getter.rb
+++ b/lib/register/instructions/getter.rb
@@ -29,6 +29,10 @@ module Register
     end
     attr_accessor :array , :index , :register
 
+    def to_s
+      "#{self.class.name}: #{array}[#{index}] -> #{register}"
+    end
+
   end
 
 end
diff --git a/lib/register/instructions/set_byte.rb b/lib/register/instructions/set_byte.rb
index c2a3116c..f0052002 100644
--- a/lib/register/instructions/set_byte.rb
+++ b/lib/register/instructions/set_byte.rb
@@ -6,10 +6,6 @@ module Register
 
   class SetByte < Setter
 
-    def to_s
-      "SetByte: #{register} -> #{array} [#{index}]"
-    end
-
   end
 
   # Produce a SetByte instruction.
diff --git a/lib/register/instructions/set_slot.rb b/lib/register/instructions/set_slot.rb
index d0a3f1f0..4500ec1f 100644
--- a/lib/register/instructions/set_slot.rb
+++ b/lib/register/instructions/set_slot.rb
@@ -20,10 +20,6 @@ module Register
     # end
     # attr_accessor :register , :array , :index
 
-    def to_s
-      "SetSlot: #{register} -> #{array} [#{index}]"
-    end
-
   end
 
   # Produce a SetSlot instruction.
diff --git a/lib/register/instructions/setter.rb b/lib/register/instructions/setter.rb
index ee366372..ef9de905 100644
--- a/lib/register/instructions/setter.rb
+++ b/lib/register/instructions/setter.rb
@@ -27,6 +27,10 @@ module Register
     end
     attr_accessor :register , :array , :index
 
+    def to_s
+      "#{self.class.name}: #{array}[#{index}] -> #{register}"
+    end
+
   end
 
 end