diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memset.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memset.asm
index 5c6b808f1e..2d901c3a6b 100755
--- a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memset.asm
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memset.asm
@@ -47,9 +47,11 @@ L9
   ldmfd  sp!, {r7, pc}
 
 __aeabi_memclr
+  mov   r2, r1
   mov   r1, #0
   b     __aeabi_memset
 
 __aeabi_memclr4
+  mov   r2, r1
   mov   r1, #0
   b     __aeabi_memset