diff --git a/cmake/Version.cmake b/cmake/Version.cmake
index 194c6e9de..5a3750ca3 100644
--- a/cmake/Version.cmake
+++ b/cmake/Version.cmake
@@ -127,6 +127,7 @@ else(FORCE_GIT_REVISION)
 
   if(NOT GIT_EXECUTABLE-NOTFOUND)
     execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
         RESULT_VARIABLE GIT_INFO_RESULT
         OUTPUT_VARIABLE GIT_REV
         ERROR_QUIET