diff --git a/code/CMakeModules/GetRevision.cmake b/code/CMakeModules/GetRevision.cmake
index d38215aba..52f443d5f 100644
--- a/code/CMakeModules/GetRevision.cmake
+++ b/code/CMakeModules/GetRevision.cmake
@@ -48,13 +48,15 @@ IF(EXISTS "${ROOT_DIR}/.hg/")
   IF(MERCURIAL_FOUND)
     Mercurial_WC_INFO(${ROOT_DIR} ER)
     SET(REVISION ${ER_WC_REVISION})
+    SET(CHANGESET ${ER_WC_CHANGESET})
+    SET(BRANCH ${ER_WC_BRANCH})
   ENDIF(MERCURIAL_FOUND)
 ENDIF(EXISTS "${ROOT_DIR}/.hg/")
 
-IF(REVISION)
+IF(DEFINED REVISION)
   IF(EXISTS ${SOURCE_DIR}/revision.h.in)
     NOW(BUILD_DATE)
     CONFIGURE_FILE(${SOURCE_DIR}/revision.h.in revision.h.txt)
     EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E copy revision.h.txt revision.h) # copy_if_different
   ENDIF(EXISTS ${SOURCE_DIR}/revision.h.in)
-ENDIF(REVISION)
+ENDIF(DEFINED REVISION)