X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/1cea529f7dc604c05ae5d8a86c736e37fedd88aa..2fb439b45a8d445a24aee5b21fa10c33830a134a:/towers.c

diff --git a/towers.c b/towers.c
index be0a730..bd39554 100644
--- a/towers.c
+++ b/towers.c
@@ -1255,7 +1255,7 @@ static int check_errors(game_state *state, int *errors)
     return errs;
 }
 
-static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
+static char *interpret_move(game_state *state, game_ui *ui, const game_drawstate *ds,
 			    int x, int y, int button)
 {
     int w = state->par.w;