diff --git a/dlls/dmime/dmime_private.h b/dlls/dmime/dmime_private.h
index 95c33246d1..de6533d0ee 100644
--- a/dlls/dmime/dmime_private.h
+++ b/dlls/dmime/dmime_private.h
@@ -46,7 +46,6 @@
 /*****************************************************************************
  * Interfaces
  */
-typedef struct IDirectMusicPerformance8Impl IDirectMusicPerformance8Impl;
 typedef struct IDirectMusicSegment8Impl IDirectMusicSegment8Impl;
 typedef struct IDirectMusicSegmentState8Impl IDirectMusicSegmentState8Impl;
 typedef struct IDirectMusicGraphImpl IDirectMusicGraphImpl;
@@ -123,47 +122,6 @@ typedef struct DMUSIC_PRIVATE_PCHANNEL_ {
 	IDirectMusicPort *port; /* ... at this port */
 } DMUSIC_PRIVATE_PCHANNEL, *LPDMUSIC_PRIVATE_PCHANNEL;
 
-/*****************************************************************************
- * IDirectMusicPerformance8Impl implementation structure
- */
-struct IDirectMusicPerformance8Impl {
-  /* IUnknown fields */
-  IDirectMusicPerformance8 IDirectMusicPerformance8_iface;
-  LONG                   ref;
-
-  /* IDirectMusicPerformanceImpl fields */
-  IDirectMusic8*         pDirectMusic;
-  IDirectSound*          pDirectSound;
-  IDirectMusicGraph*     pToolGraph;
-  DMUS_AUDIOPARAMS       pParams;
-
-  /* global parameters */
-  BOOL  fAutoDownload;
-  char  cMasterGrooveLevel;
-  float fMasterTempo;
-  long  lMasterVolume;
-	
-  /* performance channels */
-  DMUSIC_PRIVATE_PCHANNEL PChannel[32];
-
-   /* IDirectMusicPerformance8Impl fields */
-  IDirectMusicAudioPath* pDefaultPath;
-  HANDLE hNotification;
-  REFERENCE_TIME rtMinimum;
-
-  REFERENCE_TIME rtLatencyTime;
-  DWORD dwBumperLength;
-  DWORD dwPrepareTime;
-  /** Message Processing */
-  HANDLE         procThread;
-  DWORD          procThreadId;
-  REFERENCE_TIME procThreadStartTime;
-  BOOL           procThreadTicStarted;
-  CRITICAL_SECTION safe;
-  struct DMUS_PMSGItem* head; 
-  struct DMUS_PMSGItem* imm_head; 
-};
-
 /*****************************************************************************
  * IDirectMusicSegment8Impl implementation structure
  */
diff --git a/dlls/dmime/performance.c b/dlls/dmime/performance.c
index dac4a424cf..bc44fa5779 100644
--- a/dlls/dmime/performance.c
+++ b/dlls/dmime/performance.c
@@ -22,6 +22,38 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(dmime);
 
+typedef struct IDirectMusicPerformance8Impl {
+    IDirectMusicPerformance8 IDirectMusicPerformance8_iface;
+    LONG ref;
+    /* IDirectMusicPerformanceImpl fields */
+    IDirectMusic8 *pDirectMusic;
+    IDirectSound *pDirectSound;
+    IDirectMusicGraph *pToolGraph;
+    DMUS_AUDIOPARAMS pParams;
+    /* global parameters */
+    BOOL fAutoDownload;
+    char cMasterGrooveLevel;
+    float fMasterTempo;
+    long lMasterVolume;
+    /* performance channels */
+    DMUSIC_PRIVATE_PCHANNEL PChannel[32];
+    /* IDirectMusicPerformance8Impl fields */
+    IDirectMusicAudioPath *pDefaultPath;
+    HANDLE hNotification;
+    REFERENCE_TIME rtMinimum;
+    REFERENCE_TIME rtLatencyTime;
+    DWORD dwBumperLength;
+    DWORD dwPrepareTime;
+    /** Message Processing */
+    HANDLE procThread;
+    DWORD procThreadId;
+    REFERENCE_TIME procThreadStartTime;
+    BOOL procThreadTicStarted;
+    CRITICAL_SECTION safe;
+    struct DMUS_PMSGItem *head;
+    struct DMUS_PMSGItem *imm_head;
+} IDirectMusicPerformance8Impl;
+
 typedef struct DMUS_PMSGItem DMUS_PMSGItem;
 struct DMUS_PMSGItem {
   DMUS_PMSGItem* next;