diff --git a/README.md b/README.md
index 30598815d78560fb0869549997d62dce111050ad..0c88441b4d649d922d30131ad9f4f1e194399af5 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@ $ cd build
 $ cmake ../
 $ make
 $ sudo make install
+$ sudo ldconfig # if this is first time installing library
 ```
 
 Note the `sudo` password is that of the *cdc* Ubuntu VM account.