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-rw-r--r--ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
index 94bafa22ef..a569c3c554 100644
--- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/AcpiParser.c
@@ -294,7 +294,7 @@ DumpUint64 (
Val = *(UINT32*)(Ptr + sizeof (UINT32));
- Val <<= 32;
+ Val = LShiftU64(Val,32);
Val |= (UINT64)*(UINT32*)Ptr;
Print (Format, Val);