diff --git a/build_helper/build_helper_configs.py b/build_helper/build_helper_configs.py
index 47c9e57..926dbec 100755
--- a/build_helper/build_helper_configs.py
+++ b/build_helper/build_helper_configs.py
@@ -62,6 +62,7 @@
         "-DMCUBOOT_PATH=%(codebase_root_dir)s/../mcuboot " + \
         "-DTFM_PROFILE=%(profile)s " + \
         "-DTFM_PARTITION_PROTECTED_STORAGE=%(partition_ps)s " + \
+        "-DTFM_SPM_LOG_LEVEL=TFM_SPM_LOG_LEVEL_DEBUG "
         "%(codebase_root_dir)s",
 
     # A small subset of  string substitution params is allowed in commands.