diff --git a/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveState.c b/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveState.c
index 723c77a52b..60cd9b1b3b 100644
--- a/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveState.c
+++ b/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveState.c
@@ -359,7 +359,7 @@ BootScriptWriteMemPoll (
   // Duration will be minimum 1(microsecond) to be minimum deviation,
   // so LoopTimes = Delay / 10.
   //
-  LoopTimes = DivU64x32Remainder (
+  LoopTimes = (UINTN) DivU64x32Remainder (
                 Delay,
                 10,
                 &Remainder
diff --git a/MdeModulePkg/Universal/Acpi/SmmS3SaveState/SmmS3SaveState.c b/MdeModulePkg/Universal/Acpi/SmmS3SaveState/SmmS3SaveState.c
index 3bb086fe49..e4227282c9 100644
--- a/MdeModulePkg/Universal/Acpi/SmmS3SaveState/SmmS3SaveState.c
+++ b/MdeModulePkg/Universal/Acpi/SmmS3SaveState/SmmS3SaveState.c
@@ -358,7 +358,7 @@ BootScriptWriteMemPoll (
   // Duration will be minimum 1(microsecond) to be minimum deviation,
   // so LoopTimes = Delay / 10.
   //
-  LoopTimes = DivU64x32Remainder (
+  LoopTimes = (UINTN) DivU64x32Remainder (
                 Delay,
                 10,
                 &Remainder