diff --git a/modules/ECMSetupVersion.cmake b/modules/ECMSetupVersion.cmake
index a40c4484..785c58dd 100644
--- a/modules/ECMSetupVersion.cmake
+++ b/modules/ECMSetupVersion.cmake
@@ -118,7 +118,6 @@ function(ecm_setup_version _version)
     set(project_manages_version FALSE)
     set(use_project_version FALSE)
     if(CMAKE_MAJOR_VERSION VERSION_GREATER_EQUAL 4)
-        set(project_manages_version TRUE)
         if(_version STREQUAL "PROJECT")
             set(use_project_version TRUE)
         endif()