1 files changed, 2 insertions, 0 deletions

diff --git a/key.c b/key.c
index 5cb54c13b..283aea99e 100644
--- a/key.c
+++ b/key.c
@@ -122,6 +122,8 @@ key_new_private(int type)
 void
 key_free(Key *k)
 {
+        if (k == NULL)
+                fatal("key_free: key is NULL);
         switch (k->type) {
         case KEY_RSA1:
         case KEY_RSA: