diff --git a/src/image.cpp b/src/image.cpp
index 2be47b3..bff1217 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -76,7 +76,7 @@ Image image::identicon(const string &digest)
 {
     const string sha256 = hash::sha256(digest);
     Magick::Image img(Magick::Geometry(4, 4), Magick::Color("white"));
-    // The 16 named colors specified in HTML 14.01 minus white, silver and gray.
+    // The 16 named colors specified in HTML 4.01 minus white, silver and gray.
     const std::array<Magick::Color, 13> colors =
     {
         Magick::Color("black"),