1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index e5c8b7a..c98a246 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ to `slcl`. If required, encryption should be done before uploading e.g.: using
 #### Mandatory packages
 
 ```sh
-sudo apt install build-essential libcjson-dev libsodium-dev zlib1g
+sudo apt install build-essential libcjson-dev libsodium-dev zlib1g-dev
 ```
 
 #### Optional packages