diff --git a/lisc/isel.c b/lisc/isel.c
index 7d60bfc..6f2147f 100644
--- a/lisc/isel.c
+++ b/lisc/isel.c
@@ -175,6 +175,7 @@ sel(Ins i, Fn *fn)
 		break;
 	case OAdd:
 	case OSub:
+	case OAnd:
 	case OCopy:
 		if (fn->tmp[i.to.val].type == TLong)
 			n = 2;