diff --git a/include/QF/sound.h b/include/QF/sound.h
index dc051f193..62e80d115 100644
--- a/include/QF/sound.h
+++ b/include/QF/sound.h
@@ -42,30 +42,6 @@ struct transform_s;
 */
 ///@{
 typedef struct sfx_s sfx_t;
-struct sfx_s
-{
-	struct snd_s *snd;			//!< ownding snd_t instance
-	const char *name;
-	sfx_t      *owner;
-
-	unsigned int length;
-	unsigned int loopstart;
-
-	union {
-		struct sfxstream_s *stream;
-		struct sfxblock_s *block;
-	} data;
-
-	struct sfxbuffer_s *(*touch) (sfx_t *sfx);
-	struct sfxbuffer_s *(*retain) (sfx_t *sfx);
-	void        (*release) (sfx_t *sfx);
-
-	struct sfxbuffer_s *(*getbuffer) (sfx_t *sfx);
-	struct wavinfo_s *(*wavinfo) (sfx_t *sfx);
-
-	sfx_t      *(*open) (sfx_t *sfx);
-	void        (*close) (sfx_t *sfx);
-};
 ///@}
 
 /** \defgroup sound_init Initialization functions
diff --git a/include/snd_internal.h b/include/snd_internal.h
index e9558e95e..ba713ce7c 100644
--- a/include/snd_internal.h
+++ b/include/snd_internal.h
@@ -52,6 +52,32 @@ typedef struct channel_s channel_t;
 typedef struct sfxbuffer_s sfxbuffer_t;
 typedef struct sfxblock_s sfxblock_t;
 typedef struct sfxstream_s sfxstream_t;
+
+struct sfx_s
+{
+	struct snd_s *snd;			//!< ownding snd_t instance
+	const char *name;
+	sfx_t      *owner;
+
+	unsigned int length;
+	unsigned int loopstart;
+
+	union {
+		struct sfxstream_s *stream;
+		struct sfxblock_s *block;
+	} data;
+
+	struct sfxbuffer_s *(*touch) (sfx_t *sfx);
+	struct sfxbuffer_s *(*retain) (sfx_t *sfx);
+	void        (*release) (sfx_t *sfx);
+
+	struct sfxbuffer_s *(*getbuffer) (sfx_t *sfx);
+	struct wavinfo_s *(*wavinfo) (sfx_t *sfx);
+
+	sfx_t      *(*open) (sfx_t *sfx);
+	void        (*close) (sfx_t *sfx);
+};
+
 /** paint samples into the mix buffer
 	\param offset   offset into the mix buffer at which to start mixing
 					the channel