diff --git a/src/main/java/com/carolynvs/gitallthethings/webhook/PlanTrigger.java b/src/main/java/com/carolynvs/gitallthethings/webhook/PlanTrigger.java
index 3b77a6e..5e5f037 100644
--- a/src/main/java/com/carolynvs/gitallthethings/webhook/PlanTrigger.java
+++ b/src/main/java/com/carolynvs/gitallthethings/webhook/PlanTrigger.java
@@ -34,13 +34,11 @@ public class PlanTrigger
         this.bambooLinkBuilder = bambooLinkBuilder;
     }
 
-    public String execute(PlanKey planKey, User user, Map<String, String> variables)
+    public String execute(PlanKey planKey, User user)
     {
         ImmutableChain plan = (ImmutableChain)cachedPlanManager.getPlanByKey(planKey);
 
-        Map<String, String> params = new HashMap<String, String>();
-
-        ExecutionRequestResult result = planExecutionManager.startManualExecution(plan, user, params, variables);
+        ExecutionRequestResult result = planExecutionManager.startManualExecution(plan, user, Collections.EMPTY_MAP, Collections.EMPTY_MAP);
         return bambooLinkBuilder.getBuildUrl(result.getPlanResultKey().toString());
     }
 
diff --git a/src/main/java/com/carolynvs/gitallthethings/webhook/PullRequestBuilder.java b/src/main/java/com/carolynvs/gitallthethings/webhook/PullRequestBuilder.java
index dd9d18d..1c30838 100644
--- a/src/main/java/com/carolynvs/gitallthethings/webhook/PullRequestBuilder.java
+++ b/src/main/java/com/carolynvs/gitallthethings/webhook/PullRequestBuilder.java
@@ -49,12 +49,9 @@ public class PullRequestBuilder
 
     private String triggerPlan(PlanKey planKey, PullRequestEvent pullRequestEvent)
     {
-        PullRequestBuildContext buildContext = new PullRequestBuildContext();
-        Map<String, String> variables = buildContext.createPullRequestVariables(pullRequestEvent.PullRequest);
-
         User triggerUser = pluginData.getAssociatedUser(planKey.toString(), pullRequestEvent);
 
-        return planTrigger.execute(planKey, triggerUser, variables);
+        return planTrigger.execute(planKey, triggerUser);
     }
 
     public PlanKey ensureBranchPlanExists(PlanKey planKey, PullRequest pullRequest)