diff --git a/source/use_case/ad/usecase.cmake b/source/use_case/ad/usecase.cmake
index 9ddf66e..23b4c32 100644
--- a/source/use_case/ad/usecase.cmake
+++ b/source/use_case/ad/usecase.cmake
@@ -61,7 +61,7 @@
         STRING)
 
 if (ETHOS_U_NPU_ENABLED)
-    set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/ad_medium_int8_vela_${DEFAULT_NPU_CONFIG_ID}.tflite)
+    set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/ad_medium_int8_vela_${ETHOS_U_NPU_CONFIG_ID}.tflite)
 else()
     set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/ad_medium_int8.tflite)
 endif()