diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8bc9b9c91..a501d2d0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -655,7 +655,7 @@ if(NOT ENABLE_OWN_GPSTK)
         PURPOSE "Used in some Extra Tests."
     )
 endif()
-if(NOT (GNURADIO_VERSION VERSION_LESS 3.8) AND LOG4CPP_READY_FOR_CXX17)
+if(NOT (GNURADIO_VERSION VERSION_LESS 3.8) AND (LOG4CPP_READY_FOR_CXX17 OR GNURADIO_USES_SPDLOG))
     # Check if we have std::filesystem
     if(NOT (CMAKE_VERSION VERSION_LESS 3.8))
         if(NOT GPSTK_FOUND OR NOT (GPSTK_FOUND AND GPSTK_OLDER_THAN_8))  # Fix for GPSTk < 8.0.0