diff --git a/source/use_case/img_class/usecase.cmake b/source/use_case/img_class/usecase.cmake
index 441a346..dafdbbf 100644
--- a/source/use_case/img_class/usecase.cmake
+++ b/source/use_case/img_class/usecase.cmake
@@ -47,7 +47,7 @@
     STRING)
 
 if (ETHOS_U_NPU_ENABLED)
-    set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/mobilenet_v2_1.0_224_INT8_vela_${DEFAULT_NPU_CONFIG_ID}.tflite)
+    set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/mobilenet_v2_1.0_224_INT8_vela_${ETHOS_U_NPU_CONFIG_ID}.tflite)
 else()
     set(DEFAULT_MODEL_PATH      ${DEFAULT_MODEL_DIR}/mobilenet_v2_1.0_224_INT8.tflite)
 endif()