diff --git a/api/CanvasRenderingContext2D.json b/api/CanvasRenderingContext2D.json
index b5310165b2518b..e4060035bf9621 100644
--- a/api/CanvasRenderingContext2D.json
+++ b/api/CanvasRenderingContext2D.json
@@ -1180,7 +1180,7 @@
             }
           }
         },
-        "Smoothing_downscaling": {
+        "smoothing_downscaling": {
           "__compat": {
             "description": "Smoothing when downscaling",
             "support": {
diff --git a/api/HTMLCanvasElement.json b/api/HTMLCanvasElement.json
index 83c78cb0a31968..826aa02adba690 100644
--- a/api/HTMLCanvasElement.json
+++ b/api/HTMLCanvasElement.json
@@ -819,9 +819,9 @@
             "deprecated": false
           }
         },
-        "Image_quality": {
+        "quality_parameter": {
           "__compat": {
-            "description": "Image quality parameter",
+            "description": "<code>quality</code> parameter",
             "support": {
               "chrome": {
                 "version_added": "50"
diff --git a/api/OfflineAudioContext.json b/api/OfflineAudioContext.json
index e02717b4965d65..6eef8783d3dc90 100644
--- a/api/OfflineAudioContext.json
+++ b/api/OfflineAudioContext.json
@@ -209,7 +209,7 @@
             "deprecated": false
           }
         },
-        "Parameters_accepted_in_an_object": {
+        "parameters_accepted_in_an_object": {
           "__compat": {
             "description": "Parameters accepted as a single object, as well as being passed in individually",
             "support": {