diff --git a/src/client/windows/build/internal/release_defaults.gypi b/src/client/windows/build/internal/release_defaults.gypi
index 5aa2b75c..1bf6bbee 100755
--- a/src/client/windows/build/internal/release_defaults.gypi
+++ b/src/client/windows/build/internal/release_defaults.gypi
@@ -1,7 +1,7 @@
 {
   'msvs_settings': {
     'VCCLCompilerTool': {
-      'Optimizations': '2',
+      'Optimization': '2',
       'StringPooling': 'true',
       'OmitFramePointers': 'true',
     },