diff --git a/main.c b/main.c
index c413dc2..b611667 100644
--- a/main.c
+++ b/main.c
@@ -60,6 +60,7 @@ func(Fn *fn)
 	if (debug['P']) {
 		fprintf(stderr, "\n> After parsing:\n");
 		printfn(fn, stderr);
+		exit (1);
 	}
 	T.abi0(fn);
 	fillcfg(fn);
diff --git a/parse.c b/parse.c
index 957949b..a099ef0 100644
--- a/parse.c
+++ b/parse.c
@@ -1446,6 +1446,7 @@ printfn(Fn *fn, FILE *f)
 		case Jtail:
 		  fprintf (f, "\ttail ");
 		  printref (b->jmp.arg, fn, f);
+		  fprintf (f, "%d (%d)", i->op, Oarg);
 		  break;
 		default:
 			fprintf(f, "\t%s ", jtoa[b->jmp.type]);