diff --git a/SecurityPkg/DeviceSecurity/SpdmLib/SpdmSecuredMessageLib.inf b/SecurityPkg/DeviceSecurity/SpdmLib/SpdmSecuredMessageLib.inf
index 062bf77158..771179c06a 100644
--- a/SecurityPkg/DeviceSecurity/SpdmLib/SpdmSecuredMessageLib.inf
+++ b/SecurityPkg/DeviceSecurity/SpdmLib/SpdmSecuredMessageLib.inf
@@ -24,7 +24,6 @@
 [Sources]
   libspdm/library/spdm_secured_message_lib/libspdm_secmes_context_data.c
   libspdm/library/spdm_secured_message_lib/libspdm_secmes_encode_decode.c
-  libspdm/library/spdm_secured_message_lib/libspdm_secmes_encode_decode.c
   libspdm/library/spdm_secured_message_lib/libspdm_secmes_key_exchange.c
   libspdm/library/spdm_secured_message_lib/libspdm_secmes_session.c