diff --git a/drivers/char/diag/diag_dci.c b/drivers/char/diag/diag_dci.c
index b830334dc701..f0cd6cf3967d 100644
--- a/drivers/char/diag/diag_dci.c
+++ b/drivers/char/diag/diag_dci.c
@@ -3066,8 +3066,8 @@ int diag_dci_write_proc(uint8_t peripheral, int pkt_type, char *buf, int len)
 	    !(driver->feature[PERIPHERAL_MODEM].rcvd_feature_mask)) {
 		DIAG_LOG(DIAG_DEBUG_DCI,
 			"buf: 0x%pK, p: %d, len: %d, f_mask: %d\n",
-				buf, peripheral, len,
-				driver->feature[peripheral].rcvd_feature_mask);
+			buf, peripheral, len,
+			driver->feature[PERIPHERAL_MODEM].rcvd_feature_mask);
 		return -EINVAL;
 	}