diff --git a/usermods/mpu6050_imu/usermod_mpu6050_imu.h b/usermods/mpu6050_imu/usermod_mpu6050_imu.h
index 283c986e..b4dc01a4 100644
--- a/usermods/mpu6050_imu/usermod_mpu6050_imu.h
+++ b/usermods/mpu6050_imu/usermod_mpu6050_imu.h
@@ -209,7 +209,7 @@ class MPU6050Driver : public Usermod {
       JsonObject user = root["u"];
       if (user.isNull()) user = root.createNestedObject("u");
 
-      JsonArray imu_meas = user.createNestedObject("IMU");
+      JsonObject imu_meas = user.createNestedObject("IMU");
       JsonArray quat_json = imu_meas.createNestedArray("Quat");
       quat_json.add(qat.w);
       quat_json.add(qat.x);
@@ -287,4 +287,4 @@ class MPU6050Driver : public Usermod {
       return USERMOD_ID_IMU;
     }
 
-};
\ No newline at end of file
+};