diff --git a/dlls/wined3d/resource.c b/dlls/wined3d/resource.c
index b65f50c6717..a463d82d9f9 100644
--- a/dlls/wined3d/resource.c
+++ b/dlls/wined3d/resource.c
@@ -115,7 +115,7 @@ HRESULT WINAPI IWineD3DResourceImpl_SetPrivateData(IWineD3DResource *iface, REFG
 #if 0
         (*data)->uniquenessValue = This->uniquenessValue;
 #endif
-        if (Flags & D3DSPD_IUNKNOWN) {
+        if (Flags & WINED3DSPD_IUNKNOWN) {
             (*data)->ptr.object = (LPUNKNOWN)pData;
             (*data)->size = sizeof(LPUNKNOWN);
             IUnknown_AddRef((*data)->ptr.object);
@@ -157,7 +157,7 @@ HRESULT WINAPI IWineD3DResourceImpl_GetPrivateData(IWineD3DResource *iface, REFG
 
 
 #if 0 /* This may not be right. */
-    if (((*data)->flags & D3DSPD_VOLATILE)
+    if (((*data)->flags & WINED3DSPD_VOLATILE)
         && (*data)->uniquenessValue != This->uniquenessValue)
         return DDERR_EXPIRED;
 #endif
@@ -166,7 +166,7 @@ HRESULT WINAPI IWineD3DResourceImpl_GetPrivateData(IWineD3DResource *iface, REFG
         return WINED3DERR_MOREDATA;
     }
 
-    if ((*data)->flags & D3DSPD_IUNKNOWN) {
+    if ((*data)->flags & WINED3DSPD_IUNKNOWN) {
         *(LPUNKNOWN *)pData = (*data)->ptr.object;
         IUnknown_AddRef((*data)->ptr.object);
     }
@@ -187,7 +187,7 @@ HRESULT WINAPI IWineD3DResourceImpl_FreePrivateData(IWineD3DResource *iface, REF
 
     *data = (*data)->next;
 
-    if ((*data)->flags & D3DSPD_IUNKNOWN)
+    if ((*data)->flags & WINED3DSPD_IUNKNOWN)
     {
         if ((*data)->ptr.object != NULL)
             IUnknown_Release((*data)->ptr.object);
diff --git a/include/wine/wined3d_types.h b/include/wine/wined3d_types.h
index 38622ae15c0..1421ddfc167 100644
--- a/include/wine/wined3d_types.h
+++ b/include/wine/wined3d_types.h
@@ -1562,4 +1562,7 @@ typedef enum _WINED3DSURFTYPE {
 #define WINED3DSTREAMSOURCE_INDEXEDDATA  (1 << 30)
 #define WINED3DSTREAMSOURCE_INSTANCEDATA (2 << 30)
 
+/* SetPrivateData flags */
+#define WINED3DSPD_IUNKNOWN 0x00000001
+
 #endif