diff --git a/dlls/winmm/lolvldrv.c b/dlls/winmm/lolvldrv.c
index 7081a868235..f387323fb3f 100644
--- a/dlls/winmm/lolvldrv.c
+++ b/dlls/winmm/lolvldrv.c
@@ -281,24 +281,6 @@ LPWINE_MLD	MMDRV_Get(HANDLE _hndl, UINT type, BOOL bCanBeID)
     return mld;
 }
 
-/**************************************************************************
- * 				MMDRV_GetRelated		[internal]
- */
-LPWINE_MLD	MMDRV_GetRelated(HANDLE hndl, UINT srcType,
-				 BOOL bSrcCanBeID, UINT dstType)
-{
-    LPWINE_MLD		mld;
-    TRACE("(%p, %04x, %c, %04x)\n",
-          hndl, srcType, bSrcCanBeID ? 'Y' : 'N', dstType);
-
-    if ((mld = MMDRV_Get(hndl, srcType, bSrcCanBeID)) != NULL) {
-	WINE_MM_DRIVER_PART*	part = &MMDrvs[mld->mmdIndex].parts[dstType];
-	if (part->nIDMin < part->nIDMax)
-	    return MMDRV_GetByID(part->nIDMin, dstType);
-    }
-    return NULL;
-}
-
 /**************************************************************************
  * 				MMDRV_PhysicalFeatures		[internal]
  */
diff --git a/dlls/winmm/winemm.h b/dlls/winmm/winemm.h
index 93c26271f91..d7bab0f531d 100644
--- a/dlls/winmm/winemm.h
+++ b/dlls/winmm/winemm.h
@@ -140,7 +140,6 @@ void		MMDRV_Free(HANDLE hndl, LPWINE_MLD mld) DECLSPEC_HIDDEN;
 DWORD		MMDRV_Open(LPWINE_MLD mld, UINT wMsg, DWORD_PTR dwParam1, DWORD dwParam2) DECLSPEC_HIDDEN;
 DWORD		MMDRV_Close(LPWINE_MLD mld, UINT wMsg) DECLSPEC_HIDDEN;
 LPWINE_MLD	MMDRV_Get(HANDLE hndl, UINT type, BOOL bCanBeID) DECLSPEC_HIDDEN;
-LPWINE_MLD	MMDRV_GetRelated(HANDLE hndl, UINT srcType, BOOL bSrcCanBeID, UINT dstTyped) DECLSPEC_HIDDEN;
 DWORD           MMDRV_Message(LPWINE_MLD mld, UINT wMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2) DECLSPEC_HIDDEN;
 UINT		MMDRV_PhysicalFeatures(LPWINE_MLD mld, UINT uMsg, DWORD_PTR dwParam1, DWORD_PTR dwParam2) DECLSPEC_HIDDEN;