Fix build error
diff --git a/src/Recipient.c b/src/Recipient.c
index de5d6f3..8dcbf33 100644
--- a/src/Recipient.c
+++ b/src/Recipient.c
@@ -243,6 +243,7 @@
 	int cbKey2;
 	byte * pbKeyX = NULL;
 	int cbitKeyX = 0;
+	byte rgbKey[256 / 8];
 
 	UNUSED(pcose);