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-rw-r--r--klippy/serialhdl.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/klippy/serialhdl.py b/klippy/serialhdl.py
index 2a539cf1..2e4bc467 100644
--- a/klippy/serialhdl.py
+++ b/klippy/serialhdl.py
@@ -101,7 +101,7 @@ class SerialReader:
self.msgparser.process_identify(dictionary, decompress=False)
est_clock = 1000000000000.
if pace:
- est_clock = self.msgparser.config['CLOCK_FREQ']
+ est_clock = float(self.msgparser.config['CLOCK_FREQ'])
self.serialqueue = self.ffi_lib.serialqueue_alloc(self.ser.fileno(), 1)
self.est_clock = est_clock
self.last_ack_time = time.time()