diff --git a/_config.php b/_config.php
index <HASH>..<HASH> 100644
--- a/_config.php
+++ b/_config.php
@@ -15,4 +15,5 @@ if(!class_exists("GridField")) {
 Object::add_extension("FormField", "BootstrapFormField");
 Object::add_extension("TextField", "BootstrapTextField");
 Object::add_extension("OptionsetField", "BootstrapOptionsetField");
-Object::add_extension("FormAction","BootstrapFormAction");
\ No newline at end of file
+Object::add_extension("FormAction","BootstrapFormAction");
+Object::add_extension("TextareaField", "BootstrapTextField");
Added decorator to TextareaField