diff --git a/src/react/JSONTree/JSONArrayNode.js b/src/react/JSONTree/JSONArrayNode.js
index f4e2f328..b7618735 100644
--- a/src/react/JSONTree/JSONArrayNode.js
+++ b/src/react/JSONTree/JSONArrayNode.js
@@ -76,7 +76,7 @@ export default class JSONArrayNode extends React.Component {
   // caching it if it hasn't been created yet.
   getItemString() {
     if (!this.itemString) {
-      this.itemString = this.props.data.length + ' item' + (this.props.data.length !== 0 ? 's' : '');
+      this.itemString = this.props.data.length + ' item' + (this.props.data.length !== 1 ? 's' : '');
     }
     return this.itemString;
   }
diff --git a/src/react/JSONTree/JSONObjectNode.js b/src/react/JSONTree/JSONObjectNode.js
index a1b55338..a829a634 100644
--- a/src/react/JSONTree/JSONObjectNode.js
+++ b/src/react/JSONTree/JSONObjectNode.js
@@ -78,7 +78,7 @@ export default class JSONObjectNode extends React.Component {
   getItemString() {
     if (!this.itemString) {
       const len = Object.keys(this.props.data).length;
-      this.itemString = len + ' key' + (len !== 0 ? 's' : '');
+      this.itemString = len + ' key' + (len !== 1 ? 's' : '');
     }
     return this.itemString;
   }