diff --git a/drivers/mpu9150/mpu9150_saul.c b/drivers/mpu9150/mpu9150_saul.c
index 96514a7c72..0b6d078519 100644
--- a/drivers/mpu9150/mpu9150_saul.c
+++ b/drivers/mpu9150/mpu9150_saul.c
@@ -25,7 +25,7 @@
 
 static int read_acc(const void *dev, phydat_t *res)
 {
-    int ret = mpu9150_read_accel((const mpu9150_t *)dev, (mpu9150_results_t *)res);
+    int ret = mpu9150_read_accel((const mpu9150_t *)dev, (mpu9150_results_t *)res->val);
     if (ret < 0) {
         return -ECANCELED;
     }
@@ -38,7 +38,7 @@ static int read_acc(const void *dev, phydat_t *res)
 
 static int read_gyro(const void *dev, phydat_t *res)
 {
-    int ret = mpu9150_read_gyro((const mpu9150_t *)dev, (mpu9150_results_t *)res);
+    int ret = mpu9150_read_gyro((const mpu9150_t *)dev, (mpu9150_results_t *)res->val);
     if (ret < 0) {
         return -ECANCELED;
     }
@@ -51,7 +51,7 @@ static int read_gyro(const void *dev, phydat_t *res)
 
 static int read_mag(const void *dev, phydat_t *res)
 {
-    int ret = mpu9150_read_compass((const mpu9150_t *)dev, (mpu9150_results_t *)res);
+    int ret = mpu9150_read_compass((const mpu9150_t *)dev, (mpu9150_results_t *)res->val);
     if (ret < 0) {
         return -ECANCELED;
     }