diff --git a/agent/findkey.c b/agent/findkey.c
index 41f911cf8..c2f6c3d4c 100644
--- a/agent/findkey.c
+++ b/agent/findkey.c
@@ -118,7 +118,7 @@ agent_write_private_key (const unsigned char *grip,
   gpg_error_t err;
   char *fname = NULL;
   char *tmpfname = NULL;
-  estream_t fp;
+  estream_t fp = NULL;
   int newkey;
   nvc_t pk = NULL;
   gcry_sexp_t key = NULL;