1 files changed, 1 insertions, 0 deletions

diff --git a/key.c b/key.c
index 40aab20e..f3b3d6b9 100644
--- a/key.c
+++ b/key.c
@@ -39,6 +39,7 @@
 
 #include <openssl/evp.h>
 
+#include <stdarg.h>
 #include <stdio.h>
 #include <string.h>