diff --git a/assets/parser.d.erb b/assets/parser.d.erb
index 05adf63..eeb16d1 100644
--- a/assets/parser.d.erb
+++ b/assets/parser.d.erb
@@ -3,12 +3,10 @@
  *
  * This file is generated by Propane.
  */
-
 <% if @grammar.modulename %>
-module <%= @grammar.modulename %>;
 
+module <%= @grammar.modulename %>;
 <% end %>
-import std.stdio;
 
 /**************************************************************************
  * User code blocks
@@ -913,16 +911,6 @@ public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * cont
             continue;
         }
 
-        /* Error, unexpected token. */
-        write("Unexpected token ");
-        if (token != INVALID_TOKEN_ID)
-        {
-            writeln(<%= @grammar.prefix %>token_names[token]);
-        }
-        else
-        {
-            writeln("{other}");
-        }
         /* A token was successfully lexed, so the input text position was
          * advanced. However, this is an unexpected token, so we want to reset
          * the context text position to point to the token rather than the text
diff --git a/spec/propane_spec.rb b/spec/propane_spec.rb
index 4af9ca3..bd88982 100644
--- a/spec/propane_spec.rb
+++ b/spec/propane_spec.rb
@@ -228,6 +228,9 @@ EOF
 
   it "executes user code when matching lexer token" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token abc <<
   writeln("abc!");
 >>
@@ -251,6 +254,9 @@ EOF
 
   it "supports a pattern statement" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token abc;
 /def/ <<
   writeln("def!");
@@ -272,6 +278,9 @@ EOF
 
   it "supports returning tokens from pattern code blocks" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token abc;
 /def/ <<
   writeln("def!");
@@ -295,6 +304,9 @@ EOF
 
   it "supports lexer modes" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token abc;
 token def;
 tokenid string;
@@ -328,6 +340,9 @@ EOF
 
   it "executes user code associated with a parser rule" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token a;
 token b;
 Start -> A B <<
@@ -393,6 +408,9 @@ EOF
 
   it "provides matched text to user code blocks" do
     write_grammar <<EOF
+<<
+import std.stdio;
+>>
 token id /[a-zA-Z_][a-zA-Z0-9_]*/ <<
   writeln("Matched token is ", match);
 >>