diff --git a/lib/main.js b/lib/main.js
index 22301c0..bf4e077 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -189,7 +189,9 @@ Lambda.prototype.deploy = function( program ) {
 
 	var $zipCmd = "zip -r -9  " + tmpfile + ' ' + zipfileList
 
-	exec( $zipCmd, { maxBuffer: 1024 * 1024 } ,function( err, stdout, stderr ) {
+	// maxBuffer specifies the largest amount of data allowed on stdout or stderr - if this value is exceeded then the child process is killed.
+	// changing default 200KB to 5MB
+	exec( $zipCmd, { maxBuffer: 1024 * 1024 * 5 } ,function( err, stdout, stderr ) {
 		process.chdir($cwd)
 		if ( err ) {
 			console.log("Error generating zip file")