diff --git a/lib/ruby-debug-ide/commands/expression_info.rb b/lib/ruby-debug-ide/commands/expression_info.rb
index 3eccd52c..85addd92 100644
--- a/lib/ruby-debug-ide/commands/expression_info.rb
+++ b/lib/ruby-debug-ide/commands/expression_info.rb
@@ -12,8 +12,16 @@ def execute
       string_to_parse = Command.unescape_incoming(@match.post_match) + " \n \n\n"
       total_lines = string_to_parse.count("\n") + 1
 
-      lexer = RubyLex.new
-      lexer.set_input(create_io_reader(string_to_parse))
+      IRB.init_config(nil) unless IRB.conf && IRB.conf[:PROMPT]
+      irb_workspace = IRB::WorkSpace.new Object.new
+      irb_context = IRB::Context.new(nil, irb_workspace)
+
+      lexer = RubyLex.instance_method(:initialize).arity == 1 ?
+                RubyLex.new(irb_context) : RubyLex.new
+      lexer.method(:set_input).arity == 1 ?
+        lexer.set_input(create_io_reader(string_to_parse)) :
+        lexer.set_input(create_io_reader(string_to_parse), context: irb_context)
+
 
       last_statement = ''
       last_prompt = ''
@@ -25,9 +33,9 @@ def execute
         last_indent = indent
       end
 
-      lexer.each_top_level_statement do |line, line_no|
-        last_statement = line
-      end
+      lexer.method(:each_top_level_statement).arity == 0 ?
+        lexer.each_top_level_statement { |line, line_no| last_statement = line } :
+        lexer.each_top_level_statement(irb_context) { |line, line_no| last_statement = line }
 
       incomplete = true
       if /\A\s*\Z/m =~ last_statement