diff --git a/tools-webrtc/mb/mb_config.pyl b/tools-webrtc/mb/mb_config.pyl
index 9d6b1a157a..963630030d 100644
--- a/tools-webrtc/mb/mb_config.pyl
+++ b/tools-webrtc/mb/mb_config.pyl
@@ -88,7 +88,7 @@
     'client.webrtc.fyi': {
       # Mac
       'Mac (swarming)': 'release_bot_x64',
-      'iOS64 Sim Debug (iOS 9.0)': 'ios_debug_static_bot_x64',
+      'iOS32 Sim Debug (iOS 9.0)': 'ios_debug_static_bot_x86',
 
       # Linux
       'Linux64 GCC': 'gcc_release_bot_x64',
diff --git a/webrtc/build/ios/client.webrtc.fyi/iOS64_Sim_Debug_(iOS_9.0).json b/webrtc/build/ios/client.webrtc.fyi/iOS32_Sim_Debug_(iOS_9.0).json
similarity index 88%
rename from webrtc/build/ios/client.webrtc.fyi/iOS64_Sim_Debug_(iOS_9.0).json
rename to webrtc/build/ios/client.webrtc.fyi/iOS32_Sim_Debug_(iOS_9.0).json
index cbd05e5b59..43f4ddd373 100644
--- a/webrtc/build/ios/client.webrtc.fyi/iOS64_Sim_Debug_(iOS_9.0).json
+++ b/webrtc/build/ios/client.webrtc.fyi/iOS32_Sim_Debug_(iOS_9.0).json
@@ -3,7 +3,7 @@
     "kjellander"
   ],
   "comments": [
-    "Tests for 64-bit iOS simulators.",
+    "Tests for 32-bit iOS simulators.",
     "gn_args in this file is only read by the buildbot recipe; ",
     "webrtc/build/mb_config.pyl contains the actual build configuration.",
     "TODO(kjellander): remove gn_args when the recipe is updated."
@@ -19,7 +19,7 @@
   "tests": [
     {
       "include": "common_tests.json",
-      "device type": "iPhone 6s",
+      "device type": "iPhone 5",
       "os": "9.0"
     }
   ]