diff --git a/test/test_pry.rb b/test/test_pry.rb
index e2889b7c..26508209 100644
--- a/test/test_pry.rb
+++ b/test/test_pry.rb
@@ -570,14 +570,14 @@ describe Pry do
 
           it 'should NOT try to interpolate pure ruby code (no commands) ' do
             str_output = StringIO.new
-            Pry.new(:input => StringIO.new('puts \'#{aggy}\''), :output => str_output).rep
+            Pry.new(:input => StringIO.new('format \'#{aggy}\''), :output => str_output).rep
             str_output.string.should.not =~ /NameError/
 
-            Pry.new(:input => StringIO.new('puts #{aggy}'), :output => str_output).rep
+            Pry.new(:input => StringIO.new('format #{aggy}'), :output => str_output).rep
             str_output.string.should.not =~ /NameError/
 
             $test_interpolation = "blah"
-            Pry.new(:input => StringIO.new('puts \'#{$test_interpolation}\''), :output => str_output).rep
+            Pry.new(:input => StringIO.new('format \'#{$test_interpolation}\''), :output => str_output).rep
 
             str_output.string.should.not =~ /blah/
             $test_interpolation = nil