1 files changed, 1 insertions, 1 deletions

diff --git a/src/process.c b/src/process.c
index db13406606d..5f756f4db05 100644
--- a/src/process.c
+++ b/src/process.c
@@ -5134,7 +5134,7 @@ send_process (proc, buf, len, object)
   int rv;
   struct coding_system *coding;
   struct gcpro gcpro1;
-  SIGTYPE (*old_sigpipe) ();
+  SIGTYPE (*volatile old_sigpipe) ();
 
   GCPRO1 (object);