diff --git a/packager/version/CMakeLists.txt b/packager/version/CMakeLists.txt
index fba4fb8282..ad56e0a23b 100644
--- a/packager/version/CMakeLists.txt
+++ b/packager/version/CMakeLists.txt
@@ -4,6 +4,7 @@
 # license that can be found in the LICENSE file or at
 # https://developers.google.com/open-source/licenses/bsd
 
+if(NOT DEFINED PACKAGER_VERSION)
 execute_process(
     COMMAND "${Python3_EXECUTABLE}" generate_version_string.py
     WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
@@ -14,6 +15,7 @@ execute_process(
 if(NOT STATUS EQUAL 0)
   message(FATAL_ERROR "Failed to generate Packager version")
 endif()
+endif()
 
 add_library(version STATIC version.cc)
 target_compile_definitions(version PRIVATE