diff --git a/tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py b/tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py
index 6a2b2558332a6e3fbff8ca3c26bd57de6599e6f1..ded37fe8b296445aa3a7a0a82a44b1ce41a5742a 100644
--- a/tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py
+++ b/tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py
@@ -64,7 +64,7 @@ class SDP(opcua_device):
         dtype='DevVarDoubleArray',
         mandatory=False,
         # Emit a signal on subband 102
-        default_value=[[DEFAULT_SUBBAND * float(CLK_200_MHZ) / N_subband_res] * S_pn] * N_pn
+        default_value=[[DEFAULT_SUBBAND * CLK_200_MHZ / N_subband_res] * S_pn] * N_pn
     )
 
     FPGA_wg_phase_RW_default = device_property(