diff --git a/rostests/winetests/comctl32/dpa.c b/rostests/winetests/comctl32/dpa.c
index ed28119ac89..221bcba1678 100644
--- a/rostests/winetests/comctl32/dpa.c
+++ b/rostests/winetests/comctl32/dpa.c
@@ -41,7 +41,6 @@ typedef struct _ITEMDATA
     PVOID pvData;
 } ITEMDATA, *LPITEMDATA;
 
-typedef PVOID   (CALLBACK *PFNDPAMERGE)(UINT,PVOID,PVOID,LPARAM);
 typedef HRESULT (CALLBACK *PFNDPASTM)(LPITEMDATA,IStream*,LPARAM);
 
 static HDPA    (WINAPI *pDPA_Clone)(const HDPA,const HDPA);