diff --git a/packages/playwright-core/src/server/deviceDescriptorsSource.json b/packages/playwright-core/src/server/deviceDescriptorsSource.json
index d1ca4b03b0..b9b474ce20 100644
--- a/packages/playwright-core/src/server/deviceDescriptorsSource.json
+++ b/packages/playwright-core/src/server/deviceDescriptorsSource.json
@@ -977,8 +977,8 @@
       "height": 852
     },
     "viewport": {
-      "width": 734,
-      "height": 343
+      "width": 343,
+      "height": 734
     },
     "deviceScaleFactor": 3,
     "isMobile": true,