diff --git a/git_helper.cmake b/git_helper.cmake
index 513a087..ea9bc79 100644
--- a/git_helper.cmake
+++ b/git_helper.cmake
@@ -28,17 +28,17 @@ Function ( GitGetVersion GIT_ROOT OUT_MAJOR OUT_MINOR OUT_PATCH OUT_BUILD OUT_HA
     EndIf ( )
 
     # Find the latest git tag
-    GitExecute ( "git describe --tags --abbrev=1 --match v[0-9].[0-9]* HEAD" False TAG SUCCESS )
+    GitExecute ( "git -C ${CMAKE_CURRENT_SOURCE_DIR} describe --tags --abbrev=1 --match v[0-9].[0-9]* HEAD" False TAG SUCCESS )
     If ( NOT ${SUCCESS} )
         Return ( )
     EndIf ( )
 
-    GitExecute ( "git status -s -uall" True DIRTY SUCCESS )
+    GitExecute ( "git -C ${CMAKE_CURRENT_SOURCE_DIR} status -s -uall" True DIRTY SUCCESS )
     If ( NOT ${SUCCESS} )
         Return ( )
     EndIf ( )
 
-    GitExecute ( "git rev-parse HEAD" True HASH SUCCESS )
+    GitExecute ( "git -C ${CMAKE_CURRENT_SOURCE_DIR} rev-parse HEAD" True HASH SUCCESS )
     If ( NOT ${SUCCESS} )
         Return ( )
     EndIf ( )