diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index b6beb6b3b43..c54f8788bc2 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -2649,7 +2649,7 @@ CreateAdditionalSurfaces(IDirectDrawImpl *This,
     return DD_OK;
 }
 
-HRESULT CDECL ddraw_reset_enum_callback(struct wined3d_resource *resource)
+static HRESULT CDECL ddraw_reset_enum_callback(struct wined3d_resource *resource)
 {
     return DD_OK;
 }
diff --git a/dlls/ddraw/ddraw_private.h b/dlls/ddraw/ddraw_private.h
index 38541cd5cfa..c23007e1851 100644
--- a/dlls/ddraw/ddraw_private.h
+++ b/dlls/ddraw/ddraw_private.h
@@ -200,7 +200,6 @@ struct IDirectDrawSurfaceImpl
 };
 
 HRESULT ddraw_surface_create_texture(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
-void ddraw_surface_destroy(IDirectDrawSurfaceImpl *surface) DECLSPEC_HIDDEN;
 HRESULT ddraw_surface_init(IDirectDrawSurfaceImpl *surface, IDirectDrawImpl *ddraw,
         DDSURFACEDESC2 *desc, UINT mip_level, UINT version) DECLSPEC_HIDDEN;
 ULONG ddraw_surface_release_iface(IDirectDrawSurfaceImpl *This) DECLSPEC_HIDDEN;
diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index 0caad37d93e..0d6e398ece2 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -429,7 +429,7 @@ static ULONG WINAPI d3d_texture1_AddRef(IDirect3DTexture *iface)
  *  This: Surface to free
  *
  *****************************************************************************/
-void ddraw_surface_destroy(IDirectDrawSurfaceImpl *This)
+static void ddraw_surface_destroy(IDirectDrawSurfaceImpl *This)
 {
     TRACE("surface %p.\n", This);