diff --git a/Config.cmake.in b/Config.cmake.in
index 591158d5..4e1059e0 100644
--- a/Config.cmake.in
+++ b/Config.cmake.in
@@ -16,7 +16,7 @@ include("${CMAKE_CURRENT_LIST_DIR}/cmake/configure_boost.cmake")
 
 # Boost
 # Find Boost headers only according to https://cmake.org/cmake/help/latest/module/FindBoost.html
-message(${PACKAGE_PREFIX_DIR})
+message("PACKAGE_PREFIX_DIR: ${PACKAGE_PREFIX_DIR}")
 configure_boost()
 find_dependency(Boost ${BOOST_MIN_VERSION} REQUIRED PATHS ${PACKAGE_PREFIX_DIR} NO_DEFAULT_PATH)