diff --git a/debian/control b/debian/control
index cd6d15ea7d..15422383ea 100644
--- a/debian/control
+++ b/debian/control
@@ -177,6 +177,7 @@ Depends: ${shlibs:Depends}, ${misc:Depends}, ruby | ruby-interpreter,
  ruby-jira (>= 1.4~),
 # Flowdock integration
  ruby-gitlab-flowdock-git-hook (>= 1.0.1-4~),
+   ruby-posix-spawn (>= 0.3.13~),
 # Gemnasium integration
  ruby-gemnasium-gitlab-service (>= 0.2~),
 # Slack integration