1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 0196288..c9156b8 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ submodule)
 ##### Ubuntu / Debian
 
 ```
-# apt install cmake qtkeychain-qt5-dev qttools5-dev-tools qtbase5-dev
+# apt install cmake qtkeychain-qt5-dev qttools5-dev-tools qtbase5-dev libsignal-protocol-c-dev
 ```
 
 ## License