diff --git a/sys/src/ape/9src/cc.c b/sys/src/ape/9src/cc.c
index 0540a1aa6..45256669c 100644
--- a/sys/src/ape/9src/cc.c
+++ b/sys/src/ape/9src/cc.c
@@ -122,8 +122,13 @@ main(int argc, char *argv[])
 		case 'N':
 		case 'T':
 		case 'w':
+		case 'F':
 			append(&cc, smprint("-%c", ARGC()));
 			break;
+		case 'B':
+			append(&cc, "-B");
+			Aflag = 1;
+			break;
 		case 'O':
 			break;
 		case 'W':