diff --git a/src/Makefile.am b/src/Makefile.am
index 6ebabe2c463ef50bf49fa6363fe700c0fd778765..977d932817e360f2b08b7ed22a3f42ab145b8b41 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,7 +12,7 @@ noinst_HEADERS = admin.h cfgfile.h logging.h sighandler.h connection.h \
     global.h util.h slave.h source.h stats.h refbuf.h client.h \
     compat.h fserve.h xslt.h yp.h md5.h \
     event.h event_log.h event_exec.h event_url.h \
-    acl.h auth.h auth_htpasswd.h auth_url.h auth_anonymous.h auth_static.h \
+    acl.h auth.h \
     format.h format_ogg.h format_mp3.h format_ebml.h \
     format_vorbis.h format_theora.h format_flac.h format_speex.h format_midi.h \
     format_kate.h format_skeleton.h format_opus.h
diff --git a/src/auth.c b/src/auth.c
index c597e4f94e480cbd0848949f0f67f1329ca34d53..40caea9677ab83a9fd8f7ea4fe21fcb49683dacb 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -25,10 +25,6 @@
 #include <stdio.h>
 
 #include "auth.h"
-#include "auth_htpasswd.h"
-#include "auth_url.h"
-#include "auth_anonymous.h"
-#include "auth_static.h"
 #include "source.h"
 #include "client.h"
 #include "cfgfile.h"
diff --git a/src/auth.h b/src/auth.h
index 9c086f17480806354321584fd9d590e5ef2350d3..20399c08fb66703975ae0edd61d4be4296f2b3b9 100644
--- a/src/auth.h
+++ b/src/auth.h
@@ -117,6 +117,13 @@ typedef struct auth_tag
 
 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);
+int auth_get_url_auth (auth_t *authenticator, config_options_t *options);
+int auth_get_htpasswd_auth(auth_t *auth, config_options_t *options);
+
+/* prototypes for auth.c */
 void auth_initialise (void);
 void auth_shutdown (void);
 
diff --git a/src/auth_anonymous.h b/src/auth_anonymous.h
deleted file mode 100644
index 216e34f059dafd7e905ffdd89f199547d4fa6af1..0000000000000000000000000000000000000000
--- a/src/auth_anonymous.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* Icecast
- *
- * This program is distributed under the GNU General Public License, version 2.
- * A copy of this license is included with this source.
- *
- * Copyright 2014,      Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
- */
-
-#ifndef __AUTH_ANONYMOUS_H__
-#define __AUTH_ANONYMOUS_H__
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-int auth_get_anonymous_auth (auth_t *auth, config_options_t *options);
-
-#endif
diff --git a/src/auth_htpasswd.h b/src/auth_htpasswd.h
deleted file mode 100644
index c7267d60b87701edfa7ce3243c5e325b2b51694e..0000000000000000000000000000000000000000
--- a/src/auth_htpasswd.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* Icecast
- *
- * This program is distributed under the GNU General Public License, version 2.
- * A copy of this license is included with this source.
- *
- * Copyright 2000-2004, Jack Moffitt <jack@xiph.org,
- *                      Michael Smith <msmith@xiph.org>,
- *                      oddsock <oddsock@xiph.org>,
- *                      Karl Heyes <karl@xiph.org>
- *                      and others (see AUTHORS for details).
- */
-
-#ifndef __AUTH_HTPASSWD_H__
-#define __AUTH_HTPASSWD_H__
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-int auth_get_htpasswd_auth(auth_t *auth, config_options_t *options);
-
-#endif
-
-
diff --git a/src/auth_static.h b/src/auth_static.h
deleted file mode 100644
index 4f8ba009a9c1e6f284d9d4f1768ad754f878513e..0000000000000000000000000000000000000000
--- a/src/auth_static.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* Icecast
- *
- * This program is distributed under the GNU General Public License, version 2.
- * A copy of this license is included with this source.
- *
- * Copyright 2014,      Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
- */
-
-#ifndef __AUTH_STATIC_H__
-#define __AUTH_STATIC_H__
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-int auth_get_static_auth (auth_t *auth, config_options_t *options);
-
-#endif
diff --git a/src/auth_url.h b/src/auth_url.h
deleted file mode 100644
index 4ddec631a713cb36fc8e5e76f02392b790c04df8..0000000000000000000000000000000000000000
--- a/src/auth_url.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* Icecast
- *
- * This program is distributed under the GNU General Public License, version 2.
- * A copy of this license is included with this source.
- *
- * Copyright 2000-2004, Jack Moffitt <jack@xiph.org, 
- *                      Michael Smith <msmith@xiph.org>,
- *                      oddsock <oddsock@xiph.org>,
- *                      Karl Heyes <karl@xiph.org>
- *                      and others (see AUTHORS for details).
- */
-
-#ifndef __AUTH_URL_H__
-#define __AUTH_URL_H__
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-int auth_get_url_auth (auth_t *authenticator, config_options_t *options);
-
-#endif
-
-