diff --git a/CMakeLists.txt b/CMakeLists.txt
index 825277593b..7f542c51fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -577,6 +577,7 @@ if(NOT CMake_TEST_EXTERNAL_CMAKE)
                   GROUP_READ GROUP_EXECUTE
                   WORLD_READ WORLD_EXECUTE
     REGEX "Help/(dev|guide)($|/)" EXCLUDE
+    PATTERN ".git*" EXCLUDE
     )
 
   # Install auxiliary files integrating with other tools.