diff --git a/decrypt.go b/decrypt.go
index 76d5afd..04b1aa5 100644
--- a/decrypt.go
+++ b/decrypt.go
@@ -5,6 +5,7 @@ import (
 	"unsafe"
 )
 
+// #cgo CFLAGS: -Wno-invalid-pp-token -Wno-header-guard
 // #cgo pkg-config: xmlsec1
 // #include <xmlsec/xmlsec.h>
 // #include <xmlsec/xmltree.h>