diff --git a/src/gateware/aux_controller.py b/src/gateware/aux_controller.py
index ef03c343..c6427dc6 100644
--- a/src/gateware/aux_controller.py
+++ b/src/gateware/aux_controller.py
@@ -92,7 +92,7 @@ class SRAM(Module):
                     If(ar.burst==axi.Burst.incr.value, 
                         port.adr.eq(port.adr + self.dout_index)
                     ).Else(If(ar.burst==axi.Burst.wrap.value,
-                        port.adr.eq((port.adr + self.dout_index) | ar.len)
+                        port.adr.eq(port.adr + (self.dout_index | ar.len))
                     )), # update address in the port if it's incr or wrapped burst value
                     # no port.adr update for fixed burst type
                     If(self.dout_index==ar.len, r.last.eq(1)) # and update last