diff --git a/ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.asm b/ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.asm
index ad55ae7752..50580f726d 100644
--- a/ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.asm
+++ b/ArmPkg/Library/ArmSmcLib/Arm/ArmSmc.asm
@@ -18,7 +18,7 @@
 ArmCallSmc
     push    {r4-r8}
     // r0 will be popped just after the SMC call
-    pop     {r0}
+    push     {r0}
 
     // Load the SMC arguments values into the appropriate registers
     ldr     r7, [r0, #28]