diff --git a/sys/auto_init/saul/auto_init_tsl2561.c b/sys/auto_init/saul/auto_init_tsl2561.c
index 39809e159b..487075e4a3 100644
--- a/sys/auto_init/saul/auto_init_tsl2561.c
+++ b/sys/auto_init/saul/auto_init_tsl2561.c
@@ -40,30 +40,32 @@ static tsl2561_t tsl2561_devs[TSL2561_NUMOF];
  */
 static saul_reg_t saul_entries[TSL2561_NUMOF];
 
+/**
+ * @brief   Define the number of saul info
+ */
+#define TSL2561_INFO_NUMOF    (sizeof(tsl2561_saul_info) / sizeof(tsl2561_saul_info[0]))
+
 /**
  * @brief   Reference the driver structs.
- * @{
  */
 extern const saul_driver_t tsl2561_illuminance_saul_driver;
-/** @} */
 
 void auto_init_tsl2561(void)
 {
+    assert(TSL2561_NUMOF == TSL2561_INFO_NUMOF);
+
     for (unsigned i = 0; i < TSL2561_NUMOF; i++) {
         LOG_DEBUG("[auto_init_saul] initializing tsl2561 #%u\n", i);
 
         if (tsl2561_init(&tsl2561_devs[i],
-                         tsl2561_params[i].i2c_dev,
-                         tsl2561_params[i].addr,
-                         tsl2561_params[i].gain,
-                         tsl2561_params[i].integration) != TSL2561_OK) {
+                         &tsl2561_params[i]) != TSL2561_OK) {
             LOG_ERROR("[auto_init_saul] error initializing tsl2561 #%u\n", i);
             continue;
         }
 
         /* illuminance */
         saul_entries[i].dev = &(tsl2561_devs[i]);
-        saul_entries[i].name = tsl2561_saul_reg_info[i].name;
+        saul_entries[i].name = tsl2561_saul_info[i].name;
         saul_entries[i].driver = &tsl2561_illuminance_saul_driver;
 
         /* register to saul */