diff --git a/include/vlc_sout.h b/include/vlc_sout.h
index 0165e951344af33a6534bcace1a9a79ed153b554..33ac289ace2165f41fc7a7ddf37428077b2648c9 100644
--- a/include/vlc_sout.h
+++ b/include/vlc_sout.h
@@ -78,7 +78,7 @@ struct sout_access_out_t
     char                    *psz_access;
 
     char                    *psz_path;
-    sout_access_out_sys_t   *p_sys;
+    void                    *p_sys;
     int                     (*pf_seek)( sout_access_out_t *, off_t );
     ssize_t                 (*pf_read)( sout_access_out_t *, block_t * );
     ssize_t                 (*pf_write)( sout_access_out_t *, block_t * );
diff --git a/modules/stream_out/chromecast/cast.cpp b/modules/stream_out/chromecast/cast.cpp
index b8a5840347b6c6cb0f4becc44aee89900682e025..0df0006e4dddbdb5e6bf4c4c23a0cf0db18499dd 100644
--- a/modules/stream_out/chromecast/cast.cpp
+++ b/modules/stream_out/chromecast/cast.cpp
@@ -653,7 +653,7 @@ void sout_access_out_sys_t::close()
 
 ssize_t AccessWrite(sout_access_out_t *p_access, block_t *p_block)
 {
-    sout_access_out_sys_t *p_sys = p_access->p_sys;
+    sout_access_out_sys_t *p_sys = reinterpret_cast<sout_access_out_sys_t *>( p_access->p_sys );
     return p_sys->write(p_access, p_block);
 }
 
@@ -691,7 +691,7 @@ static int AccessOpen(vlc_object_t *p_this)
 static void AccessClose(vlc_object_t *p_this)
 {
     sout_access_out_t *p_access = (sout_access_out_t*)p_this;
-    sout_access_out_sys_t *p_sys = p_access->p_sys;
+    sout_access_out_sys_t *p_sys = reinterpret_cast<sout_access_out_sys_t *>( p_access->p_sys );
 
     p_sys->close();
 }