diff --git a/README b/README
index b37c2ba..d7d47f6 100644
--- a/README
+++ b/README
@@ -3,4 +3,5 @@ Easy-to-use CSV parsing shared library for C language.
 Build requirements
 ------------------
 * libtool
-* Optional: check (for testing)
\ No newline at end of file
+* check
+* pkg-config
\ No newline at end of file