1 files changed, 1 insertions, 1 deletions
diff --git a/crawl-ref/source/beam.h b/crawl-ref/source/beam.h
index aad832b574..61f5640d07 100644
--- a/crawl-ref/source/beam.h
+++ b/crawl-ref/source/beam.h
@@ -232,7 +232,7 @@ private:
     // operate on the beam's current position (i.e., whatever pos()
     // returns.)
 public:
-    void affect_cell(bool avoid_self = false);
+    void affect_cell();
     void affect_wall();
     void affect_monster( monsters* m );
     void affect_player();