diff --git a/h/cgg_cg.h b/h/cgg_cg.h
index ae3d2b5ca..e10a7cae1 100644
--- a/h/cgg_cg.h
+++ b/h/cgg_cg.h
@@ -121,7 +121,8 @@ typedef struct exprnode *node_p;
 #define EX_INREG	39
 #define EX_REGVAR	40
 #define EX_OR		41
-#define EX_AND		42
+#define EX_XOR		42
+#define EX_AND		43
 
 
 typedef struct {        /* to stack coercions */