diff --git a/artiq/coredevice/ad53xx.py b/artiq/coredevice/ad53xx.py
index 9acdd3104..7e8654d63 100644
--- a/artiq/coredevice/ad53xx.py
+++ b/artiq/coredevice/ad53xx.py
@@ -171,7 +171,7 @@ class AD53xx:
             ctrl = self.read_reg(channel=0, op=AD53XX_READ_CONTROL)
             if ctrl & 0b10000:
                 raise ValueError("DAC over temperature")
-            delay(15*us)
+            delay(25*us)
         self.bus.write(  # enable power and overtemperature shutdown
             (AD53XX_CMD_SPECIAL | AD53XX_SPECIAL_CONTROL | 0b0010) << 8)
         if not blind: