diff --git a/video/decode/vd_lavc.c b/video/decode/vd_lavc.c
index 91569b99f3..cdd0dd8884 100644
--- a/video/decode/vd_lavc.c
+++ b/video/decode/vd_lavc.c
@@ -118,12 +118,12 @@ const struct m_sub_options vd_lavc_conf = {
     },
 };
 
-const struct vd_lavc_hwdec mp_vd_lavc_vdpau;
-const struct vd_lavc_hwdec mp_vd_lavc_videotoolbox;
-const struct vd_lavc_hwdec mp_vd_lavc_vaapi;
-const struct vd_lavc_hwdec mp_vd_lavc_vaapi_copy;
-const struct vd_lavc_hwdec mp_vd_lavc_dxva2_copy;
-const struct vd_lavc_hwdec mp_vd_lavc_rpi;
+extern const struct vd_lavc_hwdec mp_vd_lavc_vdpau;
+extern const struct vd_lavc_hwdec mp_vd_lavc_videotoolbox;
+extern const struct vd_lavc_hwdec mp_vd_lavc_vaapi;
+extern const struct vd_lavc_hwdec mp_vd_lavc_vaapi_copy;
+extern const struct vd_lavc_hwdec mp_vd_lavc_dxva2_copy;
+extern const struct vd_lavc_hwdec mp_vd_lavc_rpi;
 
 static const struct vd_lavc_hwdec *const hwdec_list[] = {
 #if HAVE_RPI