diff --git a/build_helper/build_helper_configs.py b/build_helper/build_helper_configs.py
index 161a782..5eb20ed 100755
--- a/build_helper/build_helper_configs.py
+++ b/build_helper/build_helper_configs.py
@@ -49,7 +49,7 @@
         "-DTFM_PLATFORM=%(tfm_platform)s " + \
         "-DTFM_TOOLCHAIN_FILE=%(codebase_root_dir)s/%(compiler)s " + \
         "-DTFM_ISOLATION_LEVEL=%(isolation_level)s " + \
-        "-DTEST_NS=%(test_regression)s -DTEST_S=%(test_regression)s " + \
+        "-DTEST_NS=%(test_regression)s -DTEST_S=%(test_regression)s -DTEST_NS_FLIH_IRQ=OFF " + \
         "-DTEST_BL2=%(test_regression)s " + \
         "-DCMAKE_BUILD_TYPE=%(cmake_build_type)s " + \
         "-DTEST_PSA_API=%(test_psa_api)s " + \