diff --git a/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S b/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S
index 375b91d314..d6560087e0 100644
--- a/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S
+++ b/MdePkg/Library/BaseCpuLib/RiscV/Cpu.S
@@ -10,9 +10,9 @@
 .align 3
 .section .text
 
-.global ASM_PFX(_CpuSleep)
+.global ASM_PFX(CpuSleep)
 
-ASM_PFX(_CpuSleep):
+ASM_PFX(CpuSleep):
     wfi
     ret