diff --git a/generate_parameter_library/generate_parameter_library-extras.cmake b/generate_parameter_library/generate_parameter_library-extras.cmake
index 0f1c5f4..faf8ff1 100644
--- a/generate_parameter_library/generate_parameter_library-extras.cmake
+++ b/generate_parameter_library/generate_parameter_library-extras.cmake
@@ -35,6 +35,7 @@ find_package(tl-expected REQUIRED)
 # for backward compatibility
 # remove once this redirection is removed
 # https://github.com/PickNikRobotics/cpp_polyfills/pull/12
+set(tl_expected_DEPRECATED_QUIET TRUE)
 find_package(tl_expected REQUIRED)
 
 include("${generate_parameter_library_DIR}/generate_parameter_library.cmake")