--- sread.c
+++ sread.c
@@ -465,7 +465,7 @@
           c = getscochar(1);
           continue;
         default:
-          printf("read %c(%.2x)\n", c);
+          printf("read %c(%.2x)\n", c, c);
           printf(Str("Incorrect evaluation\n"));
           longjmp(exitjmp,1);
         }