diff --git a/SETUP.md b/SETUP.md
index 7f9b67f..21a18a0 100644
--- a/SETUP.md
+++ b/SETUP.md
@@ -31,6 +31,7 @@ $ ./configure && make && sudo make install && cd ..
 $ wget https://github.com/protobuf-c/protobuf-c/releases/download/v1.0.2/protobuf-c-1.0.2.tar.gz
 $ tar xzf protobuf-c-1.0.2.tar.gz
 $ cd protobuf-c-1.0.2
+$ sudo ldconfig
 $ ./configure && make && sudo make install && cd ..
 ```