diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 1310bb5..3ee0482 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -30,6 +30,7 @@
 
 #include "mbedtls/platform_util.h"
 
+#include "crypto_types.h"
 #include "crypto_compat.h"
 
 #ifdef __cplusplus