diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index b077d8d0bcf..65ef6558b2d 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -533,7 +533,7 @@ def : Pat<(subc CPURegs:$lhs, CPURegs:$rhs),
           (SUBu CPURegs:$lhs, CPURegs:$rhs)>;
 def : Pat<(addc CPURegs:$lhs, CPURegs:$rhs),
           (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
-def : Pat<(addc  CPURegs:$src, imm:$imm),
+def : Pat<(addc  CPURegs:$src, immSExt16:$imm),
           (ADDiu CPURegs:$src, imm:$imm)>;
 
 // Call