diff --git a/README.md b/README.md
index e6c11bbc..845c9757 100644
--- a/README.md
+++ b/README.md
@@ -2961,6 +2961,8 @@ In addition to the [Standard Response Format](#standard-response-format), the ID
 
 If [Allow Queued Jobs](#allow-queued-jobs) is enabled on the event, the API response will also include a `queue` property, which will be set to the number of jobs currently queued up.
 
+**Advanced Tip:** If you do not wish to merge the POST data into the `params` (for example if you are using a webhook that provides other data as JSON), then you can add `&post_data=1` to the query string. If you do this, then the POST data will be available in the `post_data` key of the `params` object.
+
 ### get_job_status
 
 ```
diff --git a/lib/api/event.js b/lib/api/event.js
index c2fb4bba..8735f3d4 100644
--- a/lib/api/event.js
+++ b/lib/api/event.js
@@ -339,9 +339,14 @@ module.exports = Class.create({
 		// run event manually (via "Run" button in UI or by API Key)
 		// can include any event overrides in params (such as 'now')
 		var self = this;
-		var params = Tools.mergeHashes( args.params, args.query );
 		if (!this.requireMaster(args, callback)) return;
 		
+		// default behavor: merge post params and query together
+		// alt behavior (post_data): store post params into post_data
+		var params = Tools.copyHash( args.query, true );
+		if (args.query.post_data) params.post_data = args.params;
+		else Tools.mergeHashInto( params, args.params );
+		
 		var criteria = {};
 		if (params.id) criteria.id = params.id;
 		else if (params.title) criteria.title = params.title;
diff --git a/package.json b/package.json
index 12fbe140..c4ae02d1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "Cronicle",
-	"version": "0.8.38",
+	"version": "0.8.39",
 	"description": "A simple, distributed task scheduler and runner with a web based UI.",
 	"author": "Joseph Huckaby <jhuckaby@gmail.com>",
 	"homepage": "https://github.com/jhuckaby/Cronicle",