1 files changed, 3 insertions, 0 deletions
diff --git a/src/color.h b/src/color.h
index e93943609..4fcffad8e 100644
--- a/src/color.h
+++ b/src/color.h
@@ -16,6 +16,7 @@
  */
 
 #include <gdk/gdktypes.h>
+#include <string>
 
 /* Useful composition macros */
 
@@ -55,6 +56,8 @@ struct SPColor {
     guint32 toRGBA32( gint alpha ) const;
     guint32 toRGBA32( gdouble alpha ) const;
 
+    std::string toString() const;
+
     SVGICCColor* icc;
     union {
         float c[3];