diff --git a/include/libssh/pki.h b/include/libssh/pki.h
index 39a5a16d..e8c80cdf 100644
--- a/include/libssh/pki.h
+++ b/include/libssh/pki.h
@@ -45,7 +45,9 @@
 
 #define MAX_PUBKEY_SIZE 0x100000 /* 1M */
 #define MAX_PRIVKEY_SIZE 0x400000 /* 4M */
+
 #define RSA_MIN_KEY_SIZE 768
+#define RSA_DEFAULT_KEY_SIZE 3072
 
 #define SSH_KEY_FLAG_EMPTY   0x0
 #define SSH_KEY_FLAG_PUBLIC  0x0001