diff --git a/svg.h b/svg.h
new file mode 100644
index 0000000..c7da98d
--- /dev/null
+++ b/svg.h
@@ -0,0 +1,9 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+
+#include <vector>
+
+void
+show_histogram_svg(const std::vector<std::size_t>& bins);
+
+#endif // SVG_H_INCLUDED