diff --git a/README.md b/README.md
index 4f00caa..f1fc3a4 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,11 @@ git LFS repo located here:
 * https://spacecruft.org/spacecruft/blackmagic-libre-data
 
 
+# Build from Source
+To build the PDF documentation from the LaTeX source code,
+see the `BUILD.md` document.
+
+
 # Blackmagic
 Website of Blackmagic Design, manufacturer of the
 "Blackmagic Pocket Cinema Camera 6K".