diff --git a/B3_AP_ert_target/B3_AP_ert_target.tmf b/B3_AP_ert_target/B3_AP_ert_target.tmf
index a10dcbd..e891aa1 100644
--- a/B3_AP_ert_target/B3_AP_ert_target.tmf
+++ b/B3_AP_ert_target/B3_AP_ert_target.tmf
@@ -243,6 +243,15 @@ $(PRODUCT) : $(OBJS) $(SHARED_OBJS)
 	@echo "$(BUILD_SUCCESS) $(BUILD_PRODUCT_TYPE): $@"	
 endif
 
+clean:
+	@rm -f *.o *.d
+	@rm -f $(SHARED_BIN_DIR)/*.o $(SHARED_BIN_DIR)/*.d
+	@rm -f $(PRODUCT).elf $(PRODUCT).hex $(PRODUCT).bin
+	@rm -f $(OBJS)
+	@rm -f $(SHARED_LIB)
+	@rm -f $(ASM_OBJS)
+	@rm -f $(SHARED_OBJS)
+
 %.o : %.s
 	$(AS) -c $(CFLAGS) $<