diff --git a/include/types/action.h b/include/types/action.h
index 6c5fccf..948e281 100644
--- a/include/types/action.h
+++ b/include/types/action.h
@@ -121,7 +121,7 @@
 			char *name;            /* header name */
 			int name_len;          /* header name's length */
 			struct list fmt;       /* log-format compatible expression */
-			struct my_regex re;    /* used by replace-header and replace-value */
+			struct my_regex *re;   /* used by replace-header and replace-value */
 		} hdr_add;                     /* args used by "add-header" and "set-header" */
 		struct {
 			char *name;            /* header name */