diff --git a/code/base/test_base.cpp b/code/base/test_base.cpp
index d908fa7..6ea527b 100644
--- a/code/base/test_base.cpp
+++ b/code/base/test_base.cpp
@@ -188,6 +188,8 @@ class test
 			{
 				power = (SANE_Power)i;
 			}
+			else
+				power = SANE_POWER_NONE;
 		}
 		int ret = helper_->io_control(IO_CTRL_CODE_SET_POWER_LEVEL, &power, &len);
 		if (ret != SCANNER_ERR_OK)