diff --git a/README.md b/README.md
index e61bc5b..aafc039 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # tagparser
 C++ library for reading and writing MP4 (iTunes), ID3, Vorbis and Matroska tags.
+
+## Build instructions
+The tagparser library depends on c++utilities and is built in the same way.
+It also depends on zlib.