diff --git a/src/mem/ruby/structures/RubyMemoryControl.cc b/src/mem/ruby/structures/RubyMemoryControl.cc
index a7a815adb..adf3dcc53 100644
--- a/src/mem/ruby/structures/RubyMemoryControl.cc
+++ b/src/mem/ruby/structures/RubyMemoryControl.cc
@@ -169,6 +169,8 @@ RubyMemoryControl::RubyMemoryControl(const Params *p)
                                           m_banks_per_rank,
                                           m_ranks_per_dimm,
                                           m_dimms_per_channel);
+
+    warn("RubyMemoryControl is deprecated, use a DRAMCtrl subclass instead\n");
 }
 
 void