diff --git a/lib/Target/SparcV8/SparcV8InstrInfo.td b/lib/Target/SparcV8/SparcV8InstrInfo.td
index 07491eb1c10..5e61d513295 100644
--- a/lib/Target/SparcV8/SparcV8InstrInfo.td
+++ b/lib/Target/SparcV8/SparcV8InstrInfo.td
@@ -19,6 +19,7 @@ class InstV8 : Instruction {          // SparcV8 instruction baseline
   field bits<32> Inst;
 
   let Namespace = "V8";
+  let ClassPrefix = "SparcV8";
 
   bits<2> op;
   let Inst{31-30} = op;               // Top two bits are the 'op' field