diff --git a/dlls/winecoreaudio.drv/mmdevdrv.c b/dlls/winecoreaudio.drv/mmdevdrv.c
index 6715ab72e88..367f7ba0ab8 100644
--- a/dlls/winecoreaudio.drv/mmdevdrv.c
+++ b/dlls/winecoreaudio.drv/mmdevdrv.c
@@ -43,8 +43,6 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(coreaudio);
 
-unixlib_handle_t coreaudio_handle = 0;
-
 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
 
 static const REFERENCE_TIME DefaultPeriod = 100000;
@@ -199,8 +197,7 @@ BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
     {
     case DLL_PROCESS_ATTACH:
         DisableThreadLibraryCalls(dll);
-        if(NtQueryVirtualMemory(GetCurrentProcess(), dll, MemoryWineUnixFuncs,
-                                &coreaudio_handle, sizeof(coreaudio_handle), NULL))
+        if (__wine_init_unix_call())
             return FALSE;
         g_timer_q = CreateTimerQueue();
         if(!g_timer_q)
diff --git a/dlls/winecoreaudio.drv/unixlib.h b/dlls/winecoreaudio.drv/unixlib.h
index caa352d2dfa..1ff4a0bac24 100644
--- a/dlls/winecoreaudio.drv/unixlib.h
+++ b/dlls/winecoreaudio.drv/unixlib.h
@@ -33,6 +33,4 @@ NTSTATUS unix_wow64_midi_in_message(void *args) DECLSPEC_HIDDEN;
 NTSTATUS unix_wow64_midi_notify_wait(void *args) DECLSPEC_HIDDEN;
 #endif
 
-extern unixlib_handle_t coreaudio_handle;
-
-#define UNIX_CALL( func, params ) __wine_unix_call( coreaudio_handle, func, params )
+#define UNIX_CALL( func, params ) WINE_UNIX_CALL( func, params )