diff --git a/hphp/third_party/timelib/CMakeLists.txt b/hphp/third_party/timelib/CMakeLists.txt
index f121fe677..dab03cc62 100644
--- a/hphp/third_party/timelib/CMakeLists.txt
+++ b/hphp/third_party/timelib/CMakeLists.txt
@@ -29,6 +29,7 @@ TIME_CHECK_INCLUDE("limits.h")
 
 CHECK_TYPE_SIZE("int32_t" HAVE_INT32_T)
 CHECK_TYPE_SIZE("uint32_t" HAVE_UINT32_T)
+CHECK_TYPE_SIZE("int" SIZEOF_INT)
 
 CHECK_FUNCTION_EXISTS("strtoll" HAVE_STRTOLL)
 CHECK_FUNCTION_EXISTS("atoll" HAVE_ATOLL)
diff --git a/hphp/third_party/timelib/timelib_config.h.cmake b/hphp/third_party/timelib/timelib_config.h.cmake
index efb3aa2a3..96fe7c249 100644
--- a/hphp/third_party/timelib/timelib_config.h.cmake
+++ b/hphp/third_party/timelib/timelib_config.h.cmake
@@ -1,10 +1,12 @@
 #cmakedefine HAVE_SYS_TYPES_H 1
 #cmakedefine HAVE_INTTYPES_H  1
 #cmakedefine HAVE_STDINT_H    1
-#cmakedefine HAVE_STDLIB_H    1
 #cmakedefine HAVE_STRING_H    1
+#cmakedefine HAVE_STDLIB_H    1
+#cmakedefine HAVE_LOCALE_H    1
+#cmakedefine HAVE_LIMITS_H    1
 #cmakedefine HAVE_STRTOLL     1
 #cmakedefine HAVE_ATOLL       1
 #cmakedefine HAVE_INT32_T     1
 #cmakedefine HAVE_UINT32_T    1
-#cmakedefine SIZEOF_INT       4
+#define SIZEOF_INT            @SIZEOF_INT@