diff --git a/browser/main/Detail/InfoButton.js b/browser/main/Detail/InfoButton.js
index 24498880..ce9f35de 100644
--- a/browser/main/Detail/InfoButton.js
+++ b/browser/main/Detail/InfoButton.js
@@ -6,13 +6,14 @@ const InfoButton = ({
   onClick
 }) => (
   <button styleName='control-infoButton'
-    onClick={(e) => onClick(e)}
+    onClick={onClick}
   >
     <i className='fa fa-info-circle infoButton' styleName='info-button' />
   </button>
 )
 
 InfoButton.propTypes = {
+  onClick: PropTypes.func.isRequired
 }
 
 export default CSSModules(InfoButton, styles)
diff --git a/browser/main/Detail/InfoPanel.js b/browser/main/Detail/InfoPanel.js
index 193dc80f..5a1437f7 100644
--- a/browser/main/Detail/InfoPanel.js
+++ b/browser/main/Detail/InfoPanel.js
@@ -54,7 +54,9 @@ const InfoPanel = ({
 InfoPanel.propTypes = {
   storageName: PropTypes.string.isRequired,
   folderName: PropTypes.string.isRequired,
-  noteKey: PropTypes.string.isRequired
+  noteKey: PropTypes.string.isRequired,
+  updatedAt: PropTypes.string.isRequired,
+  createdAt: PropTypes.string.isRequired
 }
 
 export default CSSModules(InfoPanel, styles)
diff --git a/browser/main/Detail/MarkdownNoteDetail.js b/browser/main/Detail/MarkdownNoteDetail.js
index aeb80dd8..e5d35a28 100644
--- a/browser/main/Detail/MarkdownNoteDetail.js
+++ b/browser/main/Detail/MarkdownNoteDetail.js
@@ -234,7 +234,7 @@ class MarkdownNoteDetail extends React.Component {
 
   handleInfoButtonClick (e) {
     const infoPanel = document.querySelector('.infoPanel')
-    infoPanel.style.display = display === 'none' ? 'inline' : 'none'
+    if (infoPanel.style) infoPanel.style.display = infoPanel.style.display === 'none' ? 'inline' : 'none'
   }
 
   render () {
@@ -309,7 +309,7 @@ class MarkdownNoteDetail extends React.Component {
               <i className='fa fa-arrows-alt' styleName='fullScreen-button' />
             </button>
             <InfoButton
-              onClick={this.handleInfoButtonClick()}
+              onClick={(e) => this.handleInfoButtonClick(e)}
             />
             <InfoPanel
               storageName={currentOption.storage.name}