diff --git a/common.gypi b/common.gypi
index 8e0c0c0b0..88b412195 100644
--- a/common.gypi
+++ b/common.gypi
@@ -887,10 +887,10 @@
           'enable_pdf%': 1,
           'pdf_enable_v8%': 1,
         }],
-        ['chromeos==1 or OS=="android" or OS=="ios" or (embedded==1 and chromecast==0)', {
+        ['OS=="android" or OS=="ios" or (embedded==1 and chromecast==0)', {
           'pdf_enable_xfa%': 0,
         }, {
-          'pdf_enable_xfa%': 0, # Reverted pending crbug.com/596373
+          'pdf_enable_xfa%': 1,
         }],
 
         ['chromeos==1 or OS=="android" or OS=="ios" or desktop_linux==1', {