diff --git a/rstudio-server/tasks/main.yml b/rstudio-server/tasks/main.yml
index 7458ddaf..5b0ef172 100644
--- a/rstudio-server/tasks/main.yml
+++ b/rstudio-server/tasks/main.yml
@@ -29,6 +29,11 @@
       service: name=rstudio-server state=stopped enabled=no
       when: not rstudio_enabled
 
+    - name: Install bc, needed by the script that kills abusing jobs
+      apt: pkg=bc state=present update_cache=yes cache_valid_time=3600
+      when: rstudio_install_kill_script
+      tags: [ 'rstudio', 'rstudio_server', 'rstudio_kill_rogues' ]
+
     - name: Install a script that kills the abusing job processes
       copy: src=kill-rogue-jobs dest=/usr/local/bin/kill-rogue-jobs owner=root group=root mode=0755
       when: rstudio_install_kill_script