diff --git a/llvm/lib/Target/Alpha/AlphaInstrInfo.td b/llvm/lib/Target/Alpha/AlphaInstrInfo.td
index ce026ddeeff6..34a76d5cf1ed 100644
--- a/llvm/lib/Target/Alpha/AlphaInstrInfo.td
+++ b/llvm/lib/Target/Alpha/AlphaInstrInfo.td
@@ -826,7 +826,7 @@ def : Pat<(i64 immSExt16:$imm),
 def : Pat<(i64 immSExt16int:$imm),
           (ZAPNOTi (LDA (SExt16 immSExt16int:$imm), R31), 15)>;
 def : Pat<(i64 immConst2PartInt:$imm),
-          (ZAPNOTi (LDA (LL16 (SExt16 immConst2PartInt:$imm)), 
+          (ZAPNOTi (LDA (LL16 (SExt32 immConst2PartInt:$imm)), 
                         (LDAH (LH16 (SExt32 immConst2PartInt:$imm)), R31)), 15)>;