diff --git a/install/scripts/install_ocaml.sh b/install/scripts/install_ocaml.sh
index 5c9bb89e..4cc64d0a 100755
--- a/install/scripts/install_ocaml.sh
+++ b/install/scripts/install_ocaml.sh
@@ -5,7 +5,7 @@ QP_ROOT=$PWD
 cd -
 
 # Normal installation
-PACKAGES="core cryptokit ocamlfind sexplib"
+PACKAGES="core cryptokit ocamlfind sexplib ZMQ"
 
 declare -i i
 i=$(gcc -dumpversion | cut -d '.' -f 2)