diff --git a/csdr/__init__.py b/csdr/__init__.py
index 3bf5a7b..856cea2 100644
--- a/csdr/__init__.py
+++ b/csdr/__init__.py
@@ -671,6 +671,8 @@ class Dsp(DirewolfConfigSubscriber):
     def set_dmr_filter(self, filter):
         if self.has_pipe("dmr_control_pipe"):
             self.pipes["dmr_control_pipe"].write("{0}\n".format(filter))
+        if self.pycsdr_enabled and self.pycsdr_chain is not None and isinstance(self.pycsdr_chain, DemodulatorChain):
+            self.pycsdr_chain.setDmrFilter(filter)
 
     def set_wfm_deemphasis_tau(self, tau):
         if self.wfm_deemphasis_tau == tau:
diff --git a/csdr/chain/demodulator.py b/csdr/chain/demodulator.py
index 88ac813..8971c79 100644
--- a/csdr/chain/demodulator.py
+++ b/csdr/chain/demodulator.py
@@ -1,6 +1,7 @@
 from csdr.chain import Chain
 from pycsdr.modules import Shift, FirDecimate, Bandpass, Squelch, FractionalDecimator, Writer
 from pycsdr.types import Format
+from csdr.chain.digiham import Dmr
 
 
 class DemodulatorChain(Chain):
@@ -49,6 +50,10 @@ class DemodulatorChain(Chain):
     def setMetaWriter(self, writer: Writer):
         self.demodulator.setMetaWriter(writer)
 
+    def setDmrFilter(self, filter: int) -> None:
+        if isinstance(self.demodulator, Dmr):
+            self.demodulator.setSlotFilter(filter)
+
     def _getDecimation(self, input_rate, output_rate):
         if output_rate <= 0:
             raise ValueError("invalid output rate: {rate}".format(rate=output_rate))
diff --git a/csdr/chain/digiham.py b/csdr/chain/digiham.py
index 2da10c4..c31fc59 100644
--- a/csdr/chain/digiham.py
+++ b/csdr/chain/digiham.py
@@ -42,9 +42,13 @@ class Nxdn(DigihamChain):
         self.mbeMode = Modes.NxdnMode
         super().__init__(codecserver)
 
+
 class Dmr(DigihamChain):
     def __init__(self, codecserver: str = ""):
         self.fskDemodulator = GfskDemodulator(samplesPerSymbol=10)
         self.decoder = DmrDecoder()
         self.mbeMode = Modes.DmrMode
         super().__init__(codecserver)
+
+    def setSlotFilter(self, filter: int) -> None:
+        self.decoder.setSlotFilter(filter)