diff --git a/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S b/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S
index 2174d0dbba..0e705ddbce 100644
--- a/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S
+++ b/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S
@@ -22,7 +22,7 @@
 ASM_FUNC(CallInstallMultipleProtocolInterfaces)
     stp	 x29, x30, [sp, #-0x10]!
     mov  x29, sp
-    // Save funtion input.
+    // Save function input.
     mov  x9, x1
     mov  x10, x2
     mov  x11, x3
diff --git a/MdeModulePkg/Core/Dxe/SysCall/X64/CoreBootServices.nasm b/MdeModulePkg/Core/Dxe/SysCall/X64/CoreBootServices.nasm
index 4d14d81d74..555387bba7 100644
--- a/MdeModulePkg/Core/Dxe/SysCall/X64/CoreBootServices.nasm
+++ b/MdeModulePkg/Core/Dxe/SysCall/X64/CoreBootServices.nasm
@@ -61,7 +61,7 @@ global ASM_PFX(CallInstallMultipleProtocolInterfaces)
 ASM_PFX(CallInstallMultipleProtocolInterfaces):
     push    r12
 
-    ; Save funtion input.
+    ; Save function input.
     mov     rax, rdx
     mov     r10, r8
     mov     r11, r9