diff --git a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c
index c31247abfe..513575d1d4 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.c
@@ -958,7 +958,7 @@ GetExpectedDescriptor (
   UINTN           Offset;
 
   //
-  // Total length is too small that cannot hold the single descriptor header plus data. 
+  // Total length is too small that cannot hold the single descriptor header plus data.
   //
   if (Length <= sizeof (USB_DESC_HEAD)) {
     DEBUG ((DEBUG_ERROR, "GetExpectedDescriptor: met mal-format descriptor, total length = %d!\n", Length));
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
index be2f8af6e4..ad3afa68e1 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
@@ -129,7 +129,7 @@ struct _MTFTP4_PROTOCOL {
   // Record the total received and saved block number.
   //
   UINT64                        TotalBlock;
-  
+
   //
   // Record the acked block number.
   //
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
index 7ccab5729e..30c955fef6 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
@@ -112,7 +112,7 @@
 
   # Oniguruma: tag_end in parse_callout_of_name
   GCC:*_*_*_CC_FLAGS = -Wno-error=maybe-uninitialized
-  
+
   # Not add -Wno-error=maybe-uninitialized option for XCODE
   # XCODE doesn't know this option
   XCODE:*_*_*_CC_FLAGS =