diff --git a/Build-Linux.md b/Build-Linux.md
index 652ae8f..090e925 100644
--- a/Build-Linux.md
+++ b/Build-Linux.md
@@ -62,7 +62,7 @@ wxWidgets-3.1.0$ make && make install
 ```
 
 ###Build CubicSDR
-
+_Note: add ``` -DUSE_HAMLIB=1 ``` to cmake command line to include hamlib support._
 ```bash
 $ git clone https://github.com/cjcliffe/CubicSDR.git
 CubicSDR$ cd CubicSDR