diff --git a/lib/sensors.h b/lib/sensors.h
index 6b9d5e94..9fb6ad4f 100644
--- a/lib/sensors.h
+++ b/lib/sensors.h
@@ -127,7 +127,7 @@ extern const sensors_chip_name *sensors_get_detected_chips(int *nr);
    chip. */
 typedef struct sensors_feature_data {
   int number;
-  const char *name;
+  char *name;
   int mapping;
   int compute_mapping;
   int mode;
diff --git a/lib/sysfs.c b/lib/sysfs.c
index e4d8fb67..1665ae4a 100644
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@@ -103,7 +103,7 @@ sensors_chip_features sensors_read_dynamic_chip(struct sysfs_device *sysdir)
 
 		type = sensors_feature_get_type(&feature.data);
 		if (type == SENSORS_FEATURE_UNKNOWN) {
-			free((char *)feature.data.name);
+			free(feature.data.name);
 			continue;
 		}
 			
@@ -129,7 +129,7 @@ sensors_chip_features sensors_read_dynamic_chip(struct sysfs_device *sysdir)
 			fprintf(stderr, "libsensors error, more sensors of one"
 				" type then MAX_SENSORS_PER_TYPE, ignoring "
 				"feature: %s\n", name);
-			free((char *)feature.data.name);
+			free(feature.data.name);
 			continue;
 		}
 		
@@ -143,7 +143,7 @@ sensors_chip_features sensors_read_dynamic_chip(struct sysfs_device *sysdir)
 			fprintf(stderr, "libsensors error, trying to add dupli"
 				"cate feature: %s to dynamic feature table\n",
 				name);
-			free((char *)feature.data.name);
+			free(feature.data.name);
 			continue;
 		}