diff --git a/src/javascript/binding.gyp.cmake b/src/javascript/binding.gyp.cmake
index ffab094..8fecc19 100644
--- a/src/javascript/binding.gyp.cmake
+++ b/src/javascript/binding.gyp.cmake
@@ -16,9 +16,12 @@
       'cflags_cc!': [ '-fno-rtti', '-fno-exceptions' ],
       'cflags!': [ '-fno-exceptions' ],
       'conditions' : [
-          [ 'arch=="x64"' or 'arch=="ia32"',
+          [ 'arch=="x64"',
             { 'defines' : [ 'X86PLAT=ON' ], },
           ],
+          [ 'arch=="ia32"',
+            { 'defines' : [ 'X86PLAT=ON'], },
+          ],
           [ 'arch=="arm"',
             { 'defines' : [ 'ARMPLAT=ON'], },
           ],