diff --git a/lib/collection.js b/lib/collection.js
index 22f1def..1984b45 100644
--- a/lib/collection.js
+++ b/lib/collection.js
@@ -48,9 +48,7 @@
 
 			var params = {
 				type: execMethodType,
-				dataType: 'json',
-				contentType: 'application/json',
-				processData: false
+				dataType: 'json'
 			};
 
 			// Ensure that we have a URL and add method name to it
@@ -60,7 +58,15 @@
 			}
 
 			// stringify data to json
-			if (options.data && _.isObject(options.data)) {
+			if (
+				options.data &&
+				_.isObject(options.data) &&
+				_([
+					'post', 'patch', 'put'
+				]).contains((options.type || params.type).toLowerCase())
+			) {
+				params.processData = false;
+				params.contentType = 'application/json';
 				options.data = JSON.stringify(options.data);
 			}