diff --git a/src/misc/crypt/crypt_sizes.c b/src/misc/crypt/crypt_sizes.c
index 20ca471..53381c8 100644
--- a/src/misc/crypt/crypt_sizes.c
+++ b/src/misc/crypt/crypt_sizes.c
@@ -273,6 +273,7 @@ static const crypt_size _crypt_sizes[] = {
     _SZ_STRINGIFY_T(crc32_state),
 #endif
 
+    _SZ_STRINGIFY_T(ltc_math_descriptor)
 
 };