diff --git a/src/common/dialogs/dialog.js b/src/common/dialogs/dialog.js
index 9b3a2c8..4cc15af 100644
--- a/src/common/dialogs/dialog.js
+++ b/src/common/dialogs/dialog.js
@@ -46,7 +46,7 @@ class Dialog extends React.Component {
 
   render() {
     return (
-      <Modal keyboard show={this.props.show} onEnter={this.props.onReset} onHide={this.cancelModal} onKeyPress={this.onKeyPress}>
+      <Modal size={this.props.size || 'sm'} keyboard show={this.props.show} onEnter={this.props.onReset} onHide={this.cancelModal} onKeyPress={this.onKeyPress}>
         <Modal.Header>
           <Modal.Title>{this.props.title}</Modal.Title>
         </Modal.Header>
diff --git a/src/signal/edit-signal-mapping.js b/src/signal/edit-signal-mapping.js
index 0c64108..59d2818 100644
--- a/src/signal/edit-signal-mapping.js
+++ b/src/signal/edit-signal-mapping.js
@@ -164,7 +164,8 @@ class EditSignalMapping extends React.Component {
           blendOutCancel = {true}
           onClose={(c) => this.onClose(c)}
           onReset={() => this.resetState()}
-          valid={true}>
+          valid={true}
+          size='lg'>
 
           <FormGroup>
               <FormLabel>{this.props.direction} Mapping</FormLabel>