diff --git a/MdeModulePkg/Universal/Network/MnpDxe/MnpConfig.c b/MdeModulePkg/Universal/Network/MnpDxe/MnpConfig.c
index f783221e29..cc027a56dd 100644
--- a/MdeModulePkg/Universal/Network/MnpDxe/MnpConfig.c
+++ b/MdeModulePkg/Universal/Network/MnpDxe/MnpConfig.c
@@ -333,8 +333,8 @@ ON_EXIT:
 /**
   Try to reclaim the Nbuf into the buffer pool.
 
-  @param[in,out]  MnpServiceData        Pointer to the mnp service context data.
-  @param[in,out]  Nbuf                  Pointer to the NET_BUF to free.
+  @param[in, out]  MnpServiceData        Pointer to the mnp service context data.
+  @param[in, out]  Nbuf                  Pointer to the NET_BUF to free.
 
 **/
 VOID
diff --git a/MdeModulePkg/Universal/Network/MnpDxe/MnpImpl.h b/MdeModulePkg/Universal/Network/MnpDxe/MnpImpl.h
index db5b5939d4..9c6facd599 100644
--- a/MdeModulePkg/Universal/Network/MnpDxe/MnpImpl.h
+++ b/MdeModulePkg/Universal/Network/MnpDxe/MnpImpl.h
@@ -353,8 +353,8 @@ MnpAllocNbuf (
 /**
   Try to reclaim the Nbuf into the buffer pool.
 
-  @param[in,out]  MnpServiceData        Pointer to the mnp service context data.
-  @param[in,out]  Nbuf                  Pointer to the NET_BUF to free.
+  @param[in, out]  MnpServiceData        Pointer to the mnp service context data.
+  @param[in, out]  Nbuf                  Pointer to the NET_BUF to free.
 
 **/
 VOID