diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index 90731f06ee2..a780f1a869c 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -1408,6 +1408,7 @@ static HRESULT ddraw_surface_blt(struct ddraw_surface *dst_surface, const RECT *
 {
     struct wined3d_device *wined3d_device = dst_surface->ddraw->wined3d_device;
     struct wined3d_color colour;
+    DWORD wined3d_flags;
 
     if (flags & DDBLT_COLORFILL)
     {
@@ -1431,14 +1432,18 @@ static HRESULT ddraw_surface_blt(struct ddraw_surface *dst_surface, const RECT *
                 dst_rect, WINED3DCLEAR_ZBUFFER, NULL, colour.r, 0);
     }
 
-    if (flags & ~WINED3D_BLT_MASK)
+    wined3d_flags = flags & ~DDBLT_ASYNC;
+    if (wined3d_flags & ~WINED3D_BLT_MASK)
     {
         FIXME("Unhandled flags %#x.\n", flags);
         return E_NOTIMPL;
     }
 
+    if (!(flags & DDBLT_ASYNC))
+        wined3d_flags |= WINED3D_BLT_SYNCHRONOUS;
+
     return wined3d_texture_blt(dst_surface->wined3d_texture, dst_surface->sub_resource_idx, dst_rect,
-            src_surface->wined3d_texture, src_surface->sub_resource_idx, src_rect, flags, fx, filter);
+            src_surface->wined3d_texture, src_surface->sub_resource_idx, src_rect, wined3d_flags, fx, filter);
 }
 
 static HRESULT ddraw_surface_blt_clipped(struct ddraw_surface *dst_surface, const RECT *dst_rect_in,
@@ -4231,10 +4236,10 @@ static HRESULT WINAPI DECLSPEC_HOTPATCH ddraw_surface7_BltFast(IDirectDrawSurfac
 {
     struct ddraw_surface *dst_impl = impl_from_IDirectDrawSurface7(iface);
     struct ddraw_surface *src_impl = unsafe_impl_from_IDirectDrawSurface7(src_surface);
+    DWORD flags = WINED3D_BLT_SYNCHRONOUS;
     DWORD src_w, src_h, dst_w, dst_h;
     HRESULT hr = DD_OK;
     RECT dst_rect, s;
-    DWORD flags = 0;
 
     TRACE("iface %p, dst_x %u, dst_y %u, src_surface %p, src_rect %s, flags %#x.\n",
             iface, dst_x, dst_y, src_surface, wine_dbgstr_rect(src_rect), trans);
diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 9760f7242c6..a02b6f2c19e 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -3564,11 +3564,8 @@ HRESULT wined3d_surface_blt(struct wined3d_surface *dst_surface, const RECT *dst
     BOOL scale, convert;
     DWORD dst_location;
 
-    static const DWORD simple_blit = WINED3D_BLT_ASYNC
-            | WINED3D_BLT_SRC_CKEY
+    static const DWORD simple_blit = WINED3D_BLT_SRC_CKEY
             | WINED3D_BLT_SRC_CKEY_OVERRIDE
-            | WINED3D_BLT_WAIT
-            | WINED3D_BLT_DO_NOT_WAIT
             | WINED3D_BLT_ALPHA_TEST;
 
     TRACE("dst_surface %p, dst_rect %s, src_surface %p, src_rect %s, flags %#x, fx %p, filter %s.\n",
@@ -3590,18 +3587,6 @@ HRESULT wined3d_surface_blt(struct wined3d_surface *dst_surface, const RECT *dst
     if (!fx || !(fx->fx))
         flags &= ~WINED3D_BLT_FX;
 
-    if (flags & WINED3D_BLT_WAIT)
-        flags &= ~WINED3D_BLT_WAIT;
-
-    if (flags & WINED3D_BLT_ASYNC)
-    {
-        static unsigned int once;
-
-        if (!once++)
-            FIXME("Can't handle WINED3D_BLT_ASYNC flag.\n");
-        flags &= ~WINED3D_BLT_ASYNC;
-    }
-
     /* WINED3D_BLT_DO_NOT_WAIT appeared in DX7. */
     if (flags & WINED3D_BLT_DO_NOT_WAIT)
     {
@@ -3609,9 +3594,10 @@ HRESULT wined3d_surface_blt(struct wined3d_surface *dst_surface, const RECT *dst
 
         if (!once++)
             FIXME("Can't handle WINED3D_BLT_DO_NOT_WAIT flag.\n");
-        flags &= ~WINED3D_BLT_DO_NOT_WAIT;
     }
 
+    flags &= ~(WINED3D_BLT_SYNCHRONOUS | WINED3D_BLT_DO_NOT_WAIT | WINED3D_BLT_WAIT);
+
     if (!device->d3d_initialized)
     {
         WARN("D3D not initialized, using fallback.\n");
diff --git a/include/wine/wined3d.h b/include/wine/wined3d.h
index 05368bdc39e..e1d7702f90b 100644
--- a/include/wine/wined3d.h
+++ b/include/wine/wined3d.h
@@ -1309,7 +1309,6 @@ enum wined3d_shader_byte_code_format
 /* add dwZBufferBaseDest to every source z value before compare */
 #define WINEDDBLTFX_ZBUFFERBASEDEST                             0x00000100
 
-#define WINED3D_BLT_ASYNC                                       0x00000200
 #define WINED3D_BLT_FX                                          0x00000800
 #define WINED3D_BLT_DST_CKEY                                    0x00002000
 #define WINED3D_BLT_DST_CKEY_OVERRIDE                           0x00004000
@@ -1317,8 +1316,9 @@ enum wined3d_shader_byte_code_format
 #define WINED3D_BLT_SRC_CKEY_OVERRIDE                           0x00010000
 #define WINED3D_BLT_WAIT                                        0x01000000
 #define WINED3D_BLT_DO_NOT_WAIT                                 0x08000000
+#define WINED3D_BLT_SYNCHRONOUS                                 0x40000000
 #define WINED3D_BLT_ALPHA_TEST                                  0x80000000
-#define WINED3D_BLT_MASK                                        0x0901ea00
+#define WINED3D_BLT_MASK                                        0x0901e800
 
 /* dwFlags for GetBltStatus */
 #define WINEDDGBS_CANBLT                                        0x00000001