diff --git a/include/ipmitool/ipmi_sdr.h b/include/ipmitool/ipmi_sdr.h
index 41bb533..0dd8ec7 100644
--- a/include/ipmitool/ipmi_sdr.h
+++ b/include/ipmitool/ipmi_sdr.h
@@ -819,7 +819,7 @@ static const char *sensor_type_desc[] __attribute__ ((unused)) = {
 	    "Version Change", "FRU State" };
 
 struct sensor_reading {
-	char		s_id[17];		/* name of the sensor */
+	char		s_id[33];		/* name of the sensor */
 	struct sdr_record_full_sensor    *full;
 	struct sdr_record_compact_sensor *compact;
 	uint8_t		s_reading_valid;	/* read value valididity */