diff --git a/git-version.cmake b/git-version.cmake
index d55f76ae5c..f26cf95542 100644
--- a/git-version.cmake
+++ b/git-version.cmake
@@ -5,6 +5,7 @@ set(GIT_VERSION_UPDATE "1")
 find_package(Git)
 if(GIT_FOUND)
 	execute_process(COMMAND ${GIT_EXECUTABLE} describe --always
+		WORKING_DIRECTORY ${SOURCE_DIR}
 		RESULT_VARIABLE exit_code
 		OUTPUT_VARIABLE GIT_VERSION)
 	if(NOT ${exit_code} EQUAL 0)