1 files changed, 4 insertions, 0 deletions

diff --git a/src/process.c b/src/process.c
index d33d81f38cf..d05071824de 100644
--- a/src/process.c
+++ b/src/process.c
@@ -2812,6 +2812,10 @@ read_process_output (proc, channel)
           if (NILP (p->encode_coding_system))
             {
               p->encode_coding_system = coding->symbol;
+              if (!proc_encode_coding_system[p->outfd])
+                proc_encode_coding_system[p->outfd]
+                  = ((struct coding_system *)
+                     xmalloc (sizeof (struct coding_system)));
               setup_coding_system (coding->symbol,
                                    proc_encode_coding_system[p->outfd]);
             }