diff --git a/circuit-construction-kit-ac_a11y_view.html b/circuit-construction-kit-ac_a11y_view.html
index 1f365b5..8bf2fe7 100644
--- a/circuit-construction-kit-ac_a11y_view.html
+++ b/circuit-construction-kit-ac_a11y_view.html
@@ -224,10 +224,10 @@ <h3>PDOM & Descriptions for Circuit Construction Kit: AC</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 = 'circuit-construction-kit-ac_en';
   const filenameEnding = IS_BUILT ? '_phet.html' : '.html';
diff --git a/circuit-construction-kit-ac_en.html b/circuit-construction-kit-ac_en.html
index 7f2e6e7..7891614 100644
--- a/circuit-construction-kit-ac_en.html
+++ b/circuit-construction-kit-ac_en.html
@@ -45,7 +45,7 @@
           "adapted-from-phet"
         ],
         "simulation": true,
-        "supportsInteractiveDescriptions": true,
+        "supportsInteractiveDescription": true,
         "supportsSound": true
       },
       "eslintConfig": {
diff --git a/package.json b/package.json
index 6aa7b0d..4cb2b21 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
       "adapted-from-phet"
     ],
     "simulation": true,
-    "supportsInteractiveDescriptions": true,
+    "supportsInteractiveDescription": true,
     "supportsSound": true
   },
   "eslintConfig": {