diff --git a/lib/Target/X86/X86SchedSandyBridge.td b/lib/Target/X86/X86SchedSandyBridge.td
index c58b2c2bb88..66d78e4fc42 100644
--- a/lib/Target/X86/X86SchedSandyBridge.td
+++ b/lib/Target/X86/X86SchedSandyBridge.td
@@ -42,7 +42,6 @@ def SBPort23 : ProcResource<2>;
 def SBPort4 : ProcResource<1>;
 
 // Many micro-ops are capable of issuing on multiple ports.
-def SBPort01  : ProcResGroup<[SBPort0, SBPort1]>;
 def SBPort05  : ProcResGroup<[SBPort0, SBPort5]>;
 def SBPort15  : ProcResGroup<[SBPort1, SBPort5]>;
 def SBPort015 : ProcResGroup<[SBPort0, SBPort1, SBPort5]>;