diff --git a/drivers/sensor/sbs_gauge/sbs_gauge.c b/drivers/sensor/sbs_gauge/sbs_gauge.c
index aefce6c14ce..57bf4d0067c 100644
--- a/drivers/sensor/sbs_gauge/sbs_gauge.c
+++ b/drivers/sensor/sbs_gauge/sbs_gauge.c
@@ -260,7 +260,7 @@ static int sbs_gauge_sample_fetch(const struct device *dev,
  */
 static int sbs_gauge_init(const struct device *dev)
 {
-	struct sbs_gauge_config *cfg;
+	const struct sbs_gauge_config *cfg;
 
 	cfg = (struct sbs_gauge_config *)dev->config;