diff --git a/core.gyp b/core.gyp
index ee64446..aa4877e 100644
--- a/core.gyp
+++ b/core.gyp
@@ -140,6 +140,7 @@
         '../src/core/SkTypefaceCache.cpp',
         '../src/core/SkTypefaceCache.h',
         '../src/core/SkUnPreMultiply.cpp',
+        '../src/core/SkUserTrace.h',
         '../src/core/SkUtils.cpp',
         '../src/core/SkWriter32.cpp',
         '../src/core/SkXfermode.cpp',
@@ -235,6 +236,7 @@
         '../include/core/SkThread.h',
         '../include/core/SkThread_platform.h',
         '../include/core/SkTime.h',
+        '../include/core/SkTrace.h',
         '../include/core/SkTypeface.h',
         '../include/core/SkTypes.h',
         '../include/core/SkUnPreMultiply.h',