diff --git a/src/format_flac.c b/src/format_flac.c
index 09d71cd5..4e4e8b0d 100644
--- a/src/format_flac.c
+++ b/src/format_flac.c
@@ -21,8 +21,6 @@
 #include <ogg/ogg.h>
 #include <string.h>
 
-typedef struct source_tag source_t;
-
 #include "refbuf.h"
 #include "format_ogg.h"
 #include "client.h"
diff --git a/src/format_kate.c b/src/format_kate.c
index da558a0f..eee97d27 100644
--- a/src/format_kate.c
+++ b/src/format_kate.c
@@ -21,8 +21,6 @@
 #include <string.h>
 #include <ogg/ogg.h>
 
-typedef struct source_tag source_t;
-
 #include "refbuf.h"
 #include "format_ogg.h"
 #include "format_kate.h"
diff --git a/src/format_midi.c b/src/format_midi.c
index 069b297c..32b3aeb9 100644
--- a/src/format_midi.c
+++ b/src/format_midi.c
@@ -21,8 +21,6 @@
 #include <ogg/ogg.h>
 #include <string.h>
 
-typedef struct source_tag source_t;
-
 #include "refbuf.h"
 #include "format_ogg.h"
 #include "client.h"
diff --git a/src/format_opus.c b/src/format_opus.c
index 5821c677..bb810fa9 100644
--- a/src/format_opus.c
+++ b/src/format_opus.c
@@ -20,8 +20,6 @@
 #include <string.h>
 #include <ogg/ogg.h>
 
-typedef struct source_tag source_t;
-
 #include "format_opus.h"
 #include "stats.h"
 #include "refbuf.h"
diff --git a/src/format_skeleton.c b/src/format_skeleton.c
index 6a8bbef4..d29d806b 100644
--- a/src/format_skeleton.c
+++ b/src/format_skeleton.c
@@ -21,8 +21,6 @@
 #include <string.h>
 #include <ogg/ogg.h>
 
-typedef struct source_tag source_t;
-
 #include "refbuf.h"
 #include "format_ogg.h"
 #include "format_skeleton.h"
diff --git a/src/format_speex.c b/src/format_speex.c
index ed3dd82a..70347de0 100644
--- a/src/format_speex.c
+++ b/src/format_speex.c
@@ -21,8 +21,6 @@
 #include <ogg/ogg.h>
 #include <speex/speex_header.h>
 
-typedef struct source_tag source_t;
-
 #include "format_speex.h"
 #include "refbuf.h"
 #include "client.h"
diff --git a/src/format_theora.c b/src/format_theora.c
index 797519da..bbd2a15d 100644
--- a/src/format_theora.c
+++ b/src/format_theora.c
@@ -21,8 +21,6 @@
 #include <ogg/ogg.h>
 #include <theora/theora.h>
 
-typedef struct source_tag source_t;
-
 #include "refbuf.h"
 #include "format_ogg.h"
 #include "format_theora.h"