diff --git a/STATUS.md b/STATUS.md
index ba80d598..9f11bc40 100644
--- a/STATUS.md
+++ b/STATUS.md
@@ -60,7 +60,7 @@ The following ROM features are currently missing:
 | Driver              | Status   |  Remarks                                           |
 | :-----------------: | :------: | :------------------------------------------------: |
 | standard protocol   | DONE     |                                                    |
-| JiffyDOS            | PARTIAL  | needs more optimizations, SD2IEC not tested yet    |
+| JiffyDOS            | PARTIAL  | not fully tested yet                               |
 | DolphinDOS serial   | NOT DONE |                                                    |
 | DolphinDOS parallel | NOT DONE |                                                    |
 | CIA burst mod       | NOT DONE |                                                    |
diff --git a/c64/kernal/iec_fast/iec_tx_byte_jiffydos.s b/c64/kernal/iec_fast/iec_tx_byte_jiffydos.s
index a2b8a62e..dd33e378 100644
--- a/c64/kernal/iec_fast/iec_tx_byte_jiffydos.s
+++ b/c64/kernal/iec_fast/iec_tx_byte_jiffydos.s
@@ -95,7 +95,7 @@ iec_tx_byte_jiffydos_finalize:
 iec_tx_byte_jiffydos_wait_eoi:
 
 	sta CIA2_PRA
-	jsr iec_wait60us // XXX is it enough?
+	jsr iec_wait20us
 	lda C3PO
 	jmp iec_tx_byte_jiffydos_finalize