diff --git a/friction_a11y_view.html b/friction_a11y_view.html
index dc67aa54..9479ce88 100644
--- a/friction_a11y_view.html
+++ b/friction_a11y_view.html
@@ -224,10 +224,10 @@ <h3>PDOM & Descriptions for Friction</h3>
   }
 
   const noPostMessage = simulationQueryString.indexOf( 'postMessageOnLoad&postMessageOnError' ) === -1;
-  const noAccessibility = simulationQueryString.indexOf( 'supportsDescriptions' ) === -1;
+  const noAccessibility = simulationQueryString.indexOf( 'supportsDescription' ) === -1;
 
   noPostMessage && ( simulationQueryString += 'postMessageOnLoad&postMessageOnError&' );
-  noAccessibility && ( simulationQueryString += 'supportsDescriptions' );
+  noAccessibility && ( simulationQueryString += 'supportsDescription' );
 
   const repoLocale = 'friction_en';
   const filenameEnding = IS_BUILT ? '_phet.html' : '.html';
diff --git a/friction_en.html b/friction_en.html
index 32530ae2..5fc3266f 100644
--- a/friction_en.html
+++ b/friction_en.html
@@ -39,7 +39,7 @@
           "phet",
           "phet-io"
         ],
-        "supportsInteractiveDescriptions": true,
+        "supportsInteractiveDescription": true,
         "supportsSound": true,
         "supportsEnhancedSound": true,
         "simulation": true
diff --git a/package.json b/package.json
index 0b254502..48fc2be6 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
       "phet",
       "phet-io"
     ],
-    "supportsInteractiveDescriptions": true,
+    "supportsInteractiveDescription": true,
     "supportsSound": true,
     "supportsEnhancedSound": true,
     "simulation": true