diff --git a/testing/web-platform/tests/tools/wptrunner/wptrunner/browsers/chrome.py b/testing/web-platform/tests/tools/wptrunner/wptrunner/browsers/chrome.py
index 0ab9a5521482c..5d874f32599a3 100644
--- a/testing/web-platform/tests/tools/wptrunner/wptrunner/browsers/chrome.py
+++ b/testing/web-platform/tests/tools/wptrunner/wptrunner/browsers/chrome.py
@@ -373,6 +373,7 @@
 test_type
 test_environment
 run_info_data
+subsuite
                     
 *
 *
@@ -409,6 +410,7 @@
 test_environment
 run_info_data
                                            
+subsuite
 *
 *
 kwargs
@@ -1577,6 +1579,47 @@
 arg
 )
     
+for
+arg
+in
+subsuite
+.
+config
+.
+get
+(
+"
+binary_args
+"
+[
+]
+)
+:
+        
+if
+arg
+not
+in
+chrome_options
+[
+"
+args
+"
+]
+:
+            
+chrome_options
+[
+"
+args
+"
+]
+.
+append
+(
+arg
+)
+    
 #
 Pass
 the