diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7cb346562..40c327b1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,8 +27,10 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/sanitizers")
 include(CMakeDependentOption)
 include(SPIR-V)
 include(GNUInstallDirs)
-include(GetGitRevisionDescription)
-git_describe(GIT_DESC "--always")
+if(NOT GIT_DESC)
+	include(GetGitRevisionDescription)
+	git_describe(GIT_DESC "--always")
+endif()
 if(NOT ${CMAKE_VERSION} VERSION_LESS 3.9)
 	include(CheckIPOSupported)
 	check_ipo_supported(RESULT HAS_IPO)