Fix wrongly reference require
diff --git a/sensu/server/_handler_pagerduty.sls b/sensu/server/_handler_pagerduty.sls
index 299f253..aca2de2 100644
--- a/sensu/server/_handler_pagerduty.sls
+++ b/sensu/server/_handler_pagerduty.sls
@@ -40,4 +40,4 @@
     - service: service_sensu_server
     - service: service_sensu_api
   - require:
-    - gem_sensu_pagerduty
\ No newline at end of file
+    - gem: gem_sensu_pagerduty