diff --git a/mach/m68020/libsys/dup2.s b/mach/m68020/libsys/dup2.s
index bd4d753f2..003818bfb 100644
--- a/mach/m68020/libsys/dup2.s
+++ b/mach/m68020/libsys/dup2.s
@@ -10,7 +10,7 @@ link	a6,#0
 move.l (12,a6),-(sp)
 move.l #0,-(sp)
 move.l (8,a6),-(sp)
-jsr _fcntl
+jsr (_fcntl)
 add.l #12,sp
 unlk a6
 rts