diff --git a/nmigen/hdl/mem.py b/nmigen/hdl/mem.py
index 47a4386..38ec383 100644
--- a/nmigen/hdl/mem.py
+++ b/nmigen/hdl/mem.py
@@ -132,7 +132,7 @@ class ReadPort(Elaboratable):
 
 
 class WritePort(Elaboratable):
-    def __init__(self, memory, *, domain="sync", priority=0, granularity=None):
+    def __init__(self, memory, *, domain="sync", granularity=None):
         if granularity is None:
             granularity = memory.width
         if not isinstance(granularity, int) or granularity < 0:
@@ -147,7 +147,6 @@ class WritePort(Elaboratable):
 
         self.memory       = memory
         self.domain       = domain
-        self.priority     = priority
         self.granularity  = granularity
 
         self.addr = Signal.range(memory.depth,
@@ -164,7 +163,7 @@ class WritePort(Elaboratable):
             p_WIDTH=self.data.width,
             p_CLK_ENABLE=1,
             p_CLK_POLARITY=1,
-            p_PRIORITY=self.priority,
+            p_PRIORITY=0,
             i_CLK=ClockSignal(self.domain),
             i_EN=Cat(Repl(en_bit, self.granularity) for en_bit in self.en),
             i_ADDR=self.addr,
diff --git a/nmigen/test/test_hdl_mem.py b/nmigen/test/test_hdl_mem.py
index 2e1ade5..8e6dac9 100644
--- a/nmigen/test/test_hdl_mem.py
+++ b/nmigen/test/test_hdl_mem.py
@@ -83,7 +83,6 @@ class MemoryTestCase(FHDLTestCase):
         wrport = mem.write_port()
         self.assertEqual(wrport.memory, mem)
         self.assertEqual(wrport.domain, "sync")
-        self.assertEqual(wrport.priority, 0)
         self.assertEqual(wrport.granularity, 8)
         self.assertEqual(len(wrport.addr), 2)
         self.assertEqual(len(wrport.data), 8)
@@ -94,7 +93,6 @@ class MemoryTestCase(FHDLTestCase):
         wrport = mem.write_port(granularity=2)
         self.assertEqual(wrport.memory, mem)
         self.assertEqual(wrport.domain, "sync")
-        self.assertEqual(wrport.priority, 0)
         self.assertEqual(wrport.granularity, 2)
         self.assertEqual(len(wrport.addr), 2)
         self.assertEqual(len(wrport.data), 8)