diff --git a/SYS/KERNEL.S.ENV.txt b/SYS/KERNEL.S.ENV.txt
index c463523c..953d6d45 100644
--- a/SYS/KERNEL.S.ENV.txt
+++ b/SYS/KERNEL.S.ENV.txt
@@ -402,7 +402,8 @@ K.GetEnv		>PULLW FORPNT			value
 				bne .1
 				
 				>LDYA ZPPtr3
-				jmp K.StrDup
+				>SYSCALL2 StrDup
+				rts
 				
 .1				ldy #$ff