1 files changed, 1 insertions, 1 deletions

diff --git a/src/process.c b/src/process.c
index 6b58bc6315b..c9c6ab6d4b3 100644
--- a/src/process.c
+++ b/src/process.c
@@ -5424,7 +5424,7 @@ send_process (volatile Lisp_Object proc, const char *volatile buf,
                        that may allow the program
                        to finish doing output and read more.  */
                     {
-                      size_t offset = 0;
+                      EMACS_INT offset = 0;
 
 #ifdef BROKEN_PTY_READ_AFTER_EAGAIN
                       /* A gross hack to work around a bug in FreeBSD.