--- orig/src/coding.c
+++ mod/src/coding.c
@@ -7209,7 +7209,7 @@
   /* Character composition should be disabled.  */
   safe_terminal_coding.composing = COMPOSITION_DISABLED;
   /* Error notification should be suppressed.  */
-  terminal_coding.suppress_error = 1;
+  safe_terminal_coding.suppress_error = 1;
   safe_terminal_coding.src_multibyte = 1;
   safe_terminal_coding.dst_multibyte = 0;
   return Qnil;