diff --git a/gyp/common_variables.gypi b/gyp/common_variables.gypi
index 42e7c22f1..94e2b9b5c 100644
--- a/gyp/common_variables.gypi
+++ b/gyp/common_variables.gypi
@@ -10,10 +10,12 @@
     'skia_scalar%': 'float',
     'skia_os%': '<(OS)',
     'skia_mesa%': 0,
+    'skia_target_arch%': '',
   },
   'skia_scalar%': '<(skia_scalar)',
   'skia_os': '<(skia_os)',
   'skia_mesa': '<(skia_mesa)',
+  'skia_target_arch': '<(skia_target_arch)',
 }
 
 # Local Variables: