diff --git a/asana.php b/asana.php
index 2edae31..4ca6a62 100644
--- a/asana.php
+++ b/asana.php
@@ -668,7 +668,7 @@ private function create_task($data,$settings){
 		// Add data tags
 		$d = '';
 		foreach ($data as $key => $value){
-			$d .= ' -d "'.$key.'='.$value.'"';
+			$d .= ' -d "'.$key.'='.urlencode($value).'"';
 		}
 
 		// Send the API call
@@ -799,4 +799,4 @@ private function check_data($fields = NULL,$filter = NULL){
 		'next sunday'
 
 		);
-}
\ No newline at end of file
+}