diff --git a/Secp256k1.xs b/Secp256k1.xs
index 6f201a4..f9b5890 100644
--- a/Secp256k1.xs
+++ b/Secp256k1.xs
@@ -1,8 +1,9 @@
-#define PERL_NO_GET_CONTEXT
 #include "EXTERN.h"
 #include "perl.h"
 #include "XSUB.h"
 
+#include "ppport.h"
+
 #include <secp256k1.h>
 
 #define CURVE_SIZE 32