diff --git a/litedram/dfii.py b/litedram/dfii.py
index a52f716..075eeab 100644
--- a/litedram/dfii.py
+++ b/litedram/dfii.py
@@ -17,12 +17,12 @@ class PhaseInjector(Module, AutoCSR):
 
         self.comb += [
             If(self._command_issue.re,
-                phase.cs_n.eq(~self._command.storage[0]),
+                phase.cs_n.eq(Replicate(~self._command.storage[0], len(phase.cs_n))),
                 phase.we_n.eq(~self._command.storage[1]),
                 phase.cas_n.eq(~self._command.storage[2]),
                 phase.ras_n.eq(~self._command.storage[3])
             ).Else(
-                phase.cs_n.eq(1),
+                phase.cs_n.eq(Replicate(1, len(phase.cs_n))),
                 phase.we_n.eq(1),
                 phase.cas_n.eq(1),
                 phase.ras_n.eq(1)