Index: kernel/generic/src/adt/hash_table.c
===================================================================
--- kernel/generic/src/adt/hash_table.c	(revision aafed151536405cdb1390b88b7e4ac7c285dd53e)
+++ kernel/generic/src/adt/hash_table.c	(revision 9eea0b783493decf0abf11e5aa37be12b86e7706)
@@ -51,6 +51,6 @@
 #include <adt/hash_table.h>
 #include <adt/list.h>
+#include <assert.h>
 #include <stdlib.h>
-#include <assert.h>
 #include <str.h>
 
@@ -245,5 +245,5 @@
  *
  */
-ht_link_t *hash_table_find(const hash_table_t *h, void *key)
+ht_link_t *hash_table_find(const hash_table_t *h, const void *key)
 {
 	assert(h && h->bucket);
@@ -306,5 +306,5 @@
  * @return Returns the number of removed items.
  */
-size_t hash_table_remove(hash_table_t *h, void *key)
+size_t hash_table_remove(hash_table_t *h, const void *key)
 {
 	assert(h && h->bucket);