diff --git a/src/Composite.cpp b/src/Composite.cpp
index b80a4c50..8484342e 100644
--- a/src/Composite.cpp
+++ b/src/Composite.cpp
@@ -78,7 +78,7 @@ void Composite::add (
 // Walk all strings left to right, selecting the character and color from the
 // highest numbered layer. Emit color codes only on edge detection.
 //
-std::string Composite::str (bool blend) const
+std::string Composite::str () const
 {
   // The strings are broken into a vector of int, for UTF8 support.
   std::vector <int> characters;
diff --git a/src/Composite.h b/src/Composite.h
index 645bcfd0..451637dc 100644
--- a/src/Composite.h
+++ b/src/Composite.h
@@ -37,7 +37,7 @@ class Composite
 public:
   Composite () = default;
   void add (const std::string&, std::string::size_type, const Color&);
-  std::string str (bool blend = false) const;
+  std::string str () const;
   void clear ();
 
 private: