diff --git a/check_smart/check_smart.h b/check_smart/check_smart.h
index 5c5a053..cbf2f6b 100755
--- a/check_smart/check_smart.h
+++ b/check_smart/check_smart.h
@@ -13,7 +13,7 @@
 
 #include "auxiliar.h"
 
-#define SMARTCTL_CMD "smartctl -A "
+#define SMARTCTL_CMD "/usr/sbin/smartctl -A "
 #define VERSION "1.0"
 
 using namespace std;