diff --git a/lib/rpl/parser.rb b/lib/rpl/parser.rb
index b803add..5c38919 100644
--- a/lib/rpl/parser.rb
+++ b/lib/rpl/parser.rb
@@ -7,7 +7,7 @@ class Parser
     unless input.index("\n").nil?
       input = input.split("\n")
                    .map do |line|
-        comment_begin_index = line.index('#')
+        comment_begin_index = line.index('@')
 
         case comment_begin_index
         when nil
diff --git a/spec/parser_spec.rb b/spec/parser_spec.rb
index 12d3009..ccbbe93 100644
--- a/spec/parser_spec.rb
+++ b/spec/parser_spec.rb
@@ -311,11 +311,11 @@ dup * »
   end
 
   def test_with_comments
-    result = Parser.parse( "« 2 #deux
-# on duplique le deux
+    result = Parser.parse( "« 2 @deux
+@ on duplique le deux
 dup * »
 
-# on va STOcker ce programme dans la variable 'carré'
+@ on va STOcker ce programme dans la variable 'carré'
  'carré' sto" )
     assert_equal 3, result.size
     assert_equal RplProgram, result.first.class