diff --git a/src/Eval.cpp b/src/Eval.cpp
index ad46ef6a9..2a27b89b7 100644
--- a/src/Eval.cpp
+++ b/src/Eval.cpp
@@ -165,33 +165,6 @@ void Eval::evaluatePostfixExpression (const std::string& e, Variant& v) const
   evaluatePostfixStack (tokens, v);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-void Eval::compileExpression (const std::string& e)
-{
-  // Reduce e to a vector of tokens.
-  Lexer l (e);
-  std::string token;
-  Lexer::Type type;
-  while (l.token (token, type))
-  {
-    if (_debug)
-      context.debug ("Lexer '" + token + "' " + Lexer::typeToString (type));
-    _compiled.push_back (std::pair <std::string, Lexer::Type> (token, type));
-  }
-
-  // Parse for syntax checking and operator replacement.
-  if (_debug)
-    context.debug ("FILTER Infix        " + dump (_compiled));
-  infixParse (_compiled);
-  if (_debug)
-    context.debug ("FILTER Infix parsed " + dump (_compiled));
-
-  // Convert infix --> postfix.
-  infixToPostfix (_compiled);
-  if (_debug)
-    context.debug ("FILTER Postfix      " + dump (_compiled));
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 void Eval::compileExpression (
   const std::vector <std::pair <std::string, Lexer::Type>>& precompiled)
diff --git a/src/Eval.h b/src/Eval.h
index c39ac3a93..5a7faf43e 100644
--- a/src/Eval.h
+++ b/src/Eval.h
@@ -44,7 +44,6 @@ public:
   void addSource (bool (*fn)(const std::string&, Variant&));
   void evaluateInfixExpression (const std::string&, Variant&) const;
   void evaluatePostfixExpression (const std::string&, Variant&) const;
-  void compileExpression (const std::string&);
   void compileExpression (const std::vector <std::pair <std::string, Lexer::Type>>&);
   void evaluateCompiledExpression (Variant&);
   void debug (bool);