diff --git a/src/auth.h b/src/auth.h
index 120fb8aa..f6633233 100644
--- a/src/auth.h
+++ b/src/auth.h
@@ -131,8 +131,6 @@ struct auth_tag
     char  *role;
 };
 
-typedef struct auth_stack_tag auth_stack_t;
-
 /* prototypes for auths that do not need own header file */
 int auth_get_anonymous_auth(auth_t *auth, config_options_t *options);
 int auth_get_static_auth(auth_t *auth, config_options_t *options);
diff --git a/src/cfgfile.h b/src/cfgfile.h
index 4888f359..f83ac78d 100644
--- a/src/cfgfile.h
+++ b/src/cfgfile.h
@@ -117,7 +117,7 @@ typedef struct _mount_proxy {
     struct event_registration_tag *event;
 
     char *cluster_password;
-    struct auth_stack_tag *authstack;
+    auth_stack_t *authstack;
     unsigned int max_listener_duration;
 
     char *stream_name;
@@ -211,7 +211,7 @@ struct ice_config_tag {
 
     char *shoutcast_mount;
     char *shoutcast_user;
-    struct auth_stack_tag *authstack;
+    auth_stack_t *authstack;
 
     struct event_registration_tag *event;
 
diff --git a/src/icecasttypes.h b/src/icecasttypes.h
index e8c8da63..58032284 100644
--- a/src/icecasttypes.h
+++ b/src/icecasttypes.h
@@ -43,6 +43,7 @@ typedef struct acl_tag acl_t;
 /* ---[ auth.[ch] ]--- */
 
 typedef struct auth_tag auth_t;
+typedef struct auth_stack_tag auth_stack_t;
 
 /* ---[ cfgfile.[ch] ]--- */