diff --git a/code/C/demo-strtok.c b/code/C/demo-strtok.c
index 6b0d404..7dad911 100644
--- a/code/C/demo-strtok.c
+++ b/code/C/demo-strtok.c
@@ -19,7 +19,7 @@ for (foo=0; foo<combien; foo++) {
 	}
 puts("");
 for (foo=0; foo<combien; foo++) {
-	printf(" %c ", isprint(ptr[foo]) ? ptr[foo] : '?');
+	printf(" %c ", isprint(ptr[foo]) ? ptr[foo] : ' ');
 	}
 puts("");
 }
@@ -27,7 +27,7 @@ puts("");
 
 int main(int argc, char *argv[])
 {
-char		input[] = "foo bar quux quiz";
+char		input[] = "foo   bar\tquux wiz";
 char		*cptr, *copie;
 int		foo;
 
@@ -41,10 +41,15 @@ dump_line("1er strtok", copie, sizeof(input));
 printf("   got [%s]\n", cptr);
 puts("");
 
+puts("   two more strtok...");
 cptr = strtok(NULL, " \t");
+printf("   got [%s]\n", cptr);
 cptr = strtok(NULL, " \t");
+printf("   got [%s]\n", cptr);
 dump_line("2eme & 3me strtok", copie, sizeof(input));
-foo = cptr - copie;
+
+foo = cptr - copie;		/* this is the hack :) */
+
 printf("   index = %d\n", foo);
 printf("   and we have [%s]\n", input+foo);
 return 0;