diff --git a/dom/html/nsGenericHTMLElement.cpp b/dom/html/nsGenericHTMLElement.cpp
index 5af578b2d5..35ce8533bf 100644
--- a/dom/html/nsGenericHTMLElement.cpp
+++ b/dom/html/nsGenericHTMLElement.cpp
@@ -1480,7 +1480,7 @@ nsGenericHTMLElement::MapImageSizeAttributesInto(const nsMappedAttributes* aAttr
     }
   }
 
-  if (Preferences::GetBool("layout.css.width-and-height-map-to-aspect-ratio.enabled") &&
+  if (Preferences::GetBool("layout.css.intrinsic-aspect-ratio.enabled") &&
       aMapAspectRatio && aWidth && aHeight) {
     Maybe<double> w;
     if (aWidth->Type() == nsAttrValue::eInteger) {
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 89da97f39f..75174b1f8c 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -4824,7 +4824,7 @@ pref("layout.css.touch_action.enabled", true);
 // https://html.spec.whatwg.org/multipage/rendering.html#attributes-for-embedded-content-and-images
 // Are the width and height attributes on image-like elements mapped to the
 // internal-for-now aspect-ratio property?
-pref("layout.css.width-and-height-map-to-aspect-ratio.enabled", false);
+pref("layout.css.intrinsic-aspect-ratio.enabled", true);
 
 // Enables some assertions in nsStyleContext that are too expensive
 // for general use, but might be useful to enable for specific tests.