diff --git a/include/proto/pattern.h b/include/proto/pattern.h
index 4b5afe1..57294d8 100644
--- a/include/proto/pattern.h
+++ b/include/proto/pattern.h
@@ -186,7 +186,7 @@
  */
 void pattern_init_head(struct pattern_head *head);
 void pattern_prune(struct pattern_head *head);
-int pattern_read_from_file(struct pattern_head *head, unsigned int refflags, const char *filename, int patflags, int load_smp, char **err, const char *display, const char *file, int line);
+int pattern_read_from_file(struct pattern_head *head, unsigned int refflags, const char *filename, int patflags, int load_smp, char **err, const char *file, int line);
 
 /*
  * pattern_expr manipulation.