diff --git a/src/graphics.cpp b/src/graphics.cpp
index 127c1aa10..2d5ad188d 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -30,6 +30,8 @@
 #include <cairomm/surface.h>
 #endif
 
+#include <iostream>
+
 namespace mapnik
 {
     Image32::Image32(int width,int height)