diff --git a/drivers/si114x/include/si114x_params.h b/drivers/si114x/include/si114x_params.h
index d261613b10..8f5ee3fd05 100644
--- a/drivers/si114x/include/si114x_params.h
+++ b/drivers/si114x/include/si114x_params.h
@@ -33,7 +33,7 @@ extern "C" {
  * @{
  */
 #ifndef SI114X_PARAM_I2C_DEV
-#define SI114X_PARAM_I2C_DEV         I2C_DEV(1)
+#define SI114X_PARAM_I2C_DEV         I2C_DEV(0)
 #endif
 
 #ifndef SI114X_PARAMS
diff --git a/drivers/si114x/si114x_saul.c b/drivers/si114x/si114x_saul.c
index 96f48c5eaf..b5bc5d93f1 100644
--- a/drivers/si114x/si114x_saul.c
+++ b/drivers/si114x/si114x_saul.c
@@ -14,12 +14,11 @@
  * @brief       SAUL adaption for Si114x devices family
  *
  * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ *              Bas Stottelaar <basstottelaar@gmail.com>
  *
  * @}
  */
 
-#include <string.h>
-
 #include "saul.h"
 #include "si114x.h"
 #include "xtimer.h"
@@ -59,7 +58,7 @@ static int read_distance(const void *dev, phydat_t *res)
     si114x_t *d = (si114x_t *)dev;
 
     res->val[0] = si114x_read_distance(d);
-    res->unit = UNIT_M;
+    res->unit = UNIT_NONE;
     res->scale = 0;
     return 1;
 }
@@ -67,23 +66,23 @@ static int read_distance(const void *dev, phydat_t *res)
 const saul_driver_t si114x_uv_saul_driver = {
     .read = read_uv,
     .write = saul_notsup,
-    .type = SAUL_SENSE_ANY
+    .type = SAUL_SENSE_UV
 };
 
 const saul_driver_t si114x_ir_saul_driver = {
     .read = read_ir,
     .write = saul_notsup,
-    .type = SAUL_SENSE_ANY
+    .type = SAUL_SENSE_LIGHT
 };
 
 const saul_driver_t si114x_visible_saul_driver = {
     .read = read_visible,
     .write = saul_notsup,
-    .type = SAUL_SENSE_ANY
+    .type = SAUL_SENSE_LIGHT
 };
 
 const saul_driver_t si114x_distance_saul_driver = {
     .read = read_distance,
     .write = saul_notsup,
-    .type = SAUL_SENSE_ANY
+    .type = SAUL_SENSE_DISTANCE
 };
diff --git a/sys/auto_init/auto_init.c b/sys/auto_init/auto_init.c
index fd96540a22..098b9cd554 100644
--- a/sys/auto_init/auto_init.c
+++ b/sys/auto_init/auto_init.c
@@ -375,6 +375,10 @@ auto_init_mpu9150();
     extern void auto_init_lis2dh12(void);
     auto_init_lis2dh12();
 #endif
+#ifdef MODULE_SI114X
+    extern void auto_init_si114x(void);
+    auto_init_si114x();
+#endif
 
 #endif /* MODULE_AUTO_INIT_SAUL */
 
diff --git a/sys/auto_init/saul/auto_init_si114x.c b/sys/auto_init/saul/auto_init_si114x.c
new file mode 100644
index 0000000000..f905d33a21
--- /dev/null
+++ b/sys/auto_init/saul/auto_init_si114x.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2017-2018 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     auto_init_saul
+ * @{
+ *
+ * @file
+ * @brief       Auto initialization of Si114x driver.
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ *              Bas Stottelaar <basstottelaar@gmail.com>
+ *
+ * @}
+ */
+
+#ifdef MODULE_SI114X
+
+#include "log.h"
+#include "saul_reg.h"
+#include "si114x.h"
+#include "si114x_params.h"
+
+/**
+ * @brief   Define the number of configured sensors
+ */
+#define SI114X_NUMOF    (sizeof(si114x_params) / sizeof(si114x_params[0]))
+
+/**
+ * @brief   Allocation of memory for device descriptors
+ */
+static si114x_t si114x_devs[SI114X_NUMOF];
+
+/**
+ * @brief   Memory for the SAUL registry entries
+ */
+static saul_reg_t saul_entries[SI114X_NUMOF * 4];
+
+/**
+ * @brief   Define the number of saul info
+ */
+#define SI114X_INFO_NUMOF    (sizeof(si114x_saul_reg_info) / sizeof(si114x_saul_reg_info[0]))
+
+/**
+ * @name    Reference the driver structs
+ * @{
+ */
+extern const saul_driver_t si114x_uv_saul_driver;
+extern const saul_driver_t si114x_ir_saul_driver;
+extern const saul_driver_t si114x_visible_saul_driver;
+extern const saul_driver_t si114x_distance_saul_driver;
+/** @} */
+
+void auto_init_si114x(void)
+{
+    assert(SI114X_INFO_NUMOF == SI114X_NUMOF);
+
+    for (unsigned i = 0; i < SI114X_NUMOF; i++) {
+        LOG_DEBUG("[auto_init_saul] initializing Si114x #%u\n", i);
+
+        if (si114x_init(&si114x_devs[i], &si114x_params[i]) != SI114X_OK) {
+            LOG_ERROR("[auto_init_saul] error initializing Si114x #%i\n", i);
+            continue;
+        }
+
+        /* UV index */
+        saul_entries[i * 4].dev = &si114x_devs[i];
+        saul_entries[i * 4].name = si114x_saul_reg_info[i].name;
+        saul_entries[i * 4].driver = &si114x_uv_saul_driver;
+
+        /* Infra red */
+        saul_entries[(i * 4) + 1].dev = &si114x_devs[i];
+        saul_entries[(i * 4) + 1].name = si114x_saul_reg_info[i].name;
+        saul_entries[(i * 4) + 1].driver = &si114x_ir_saul_driver;
+
+        /* Visible */
+        saul_entries[(i * 4) + 2].dev = &si114x_devs[i];
+        saul_entries[(i * 4) + 2].name = si114x_saul_reg_info[i].name;
+        saul_entries[(i * 4) + 2].driver = &si114x_visible_saul_driver;
+
+        /* Distance */
+        saul_entries[(i * 4) + 3].dev = &si114x_devs[i];
+        saul_entries[(i * 4) + 3].name = si114x_saul_reg_info[i].name;
+        saul_entries[(i * 4) + 3].driver = &si114x_distance_saul_driver;
+
+        saul_reg_add(&saul_entries[i * 4]);
+        saul_reg_add(&saul_entries[(i * 4) + 1]);
+        saul_reg_add(&saul_entries[(i * 4) + 2]);
+        saul_reg_add(&saul_entries[(i * 4) + 3]);
+    }
+}
+
+#else
+typedef int dont_be_pedantic;
+#endif /* MODULE_SI114X */