diff --git a/pkg/libcose/init/init.c b/pkg/libcose/init/init.c
index cd3e9fa9c9..d3fd2403c5 100644
--- a/pkg/libcose/init/init.c
+++ b/pkg/libcose/init/init.c
@@ -25,6 +25,7 @@
 #include "xfa.h"
 
 #include "cose/crypto.h"
+#include "cose/crypto/riot.h"
 
 #if IS_USED(MODULE_AUTO_INIT)
 #include "auto_init_utils.h"