diff --git a/include/proto/acl.h b/include/proto/acl.h
index 39cbf46..edd4648 100644
--- a/include/proto/acl.h
+++ b/include/proto/acl.h
@@ -110,7 +110,7 @@
  * null), or false if not conflict is found. The first useless keyword is
  * returned.
  */
-int acl_cond_kw_conflicts(const struct acl_cond *cond, unsigned int where, struct acl const **acl, struct acl_keyword const **kw);
+int acl_cond_kw_conflicts(const struct acl_cond *cond, unsigned int where, struct acl const **acl, char const **kw);
 
 /*
  * Find targets for userlist and groups in acl. Function returns the number
diff --git a/include/types/acl.h b/include/types/acl.h
index 9ea0cfa..42e2e9c 100644
--- a/include/types/acl.h
+++ b/include/types/acl.h
@@ -197,7 +197,7 @@
 	struct list patterns;         /* list of acl_patterns */
 	struct eb_root pattern_tree;  /* may be used for lookup in large datasets */
 	struct list list;             /* chaining */
-	struct acl_keyword *kw;       /* back-reference to the keyword */
+	const char *kw;               /* points to the ACL kw's name or fetch's name (must not free) */
 };
 
 /* The acl will be linked to from the proxy where it is declared */