1 files changed, 3 insertions, 3 deletions
diff --git a/signpost.c b/signpost.c
index cdc958e..97beefd 100644
--- a/signpost.c
+++ b/signpost.c
@@ -1031,8 +1031,8 @@ static void connect_numbers(game_state *state)
 
 static int compare_heads(const void *a, const void *b)
 {
-    struct head_meta *ha = (struct head_meta *)a;
-    struct head_meta *hb = (struct head_meta *)b;
+    const struct head_meta *ha = (const struct head_meta *)a;
+    const struct head_meta *hb = (const struct head_meta *)b;
 
     /* Heads with preferred colours first... */
     if (ha->preference && !hb->preference) return -1;
@@ -2421,7 +2421,7 @@ static void process_desc(char *id)
     thegame.free_params(p);
 }
 
-int main(int argc, const char *argv[])
+int main(int argc, char *argv[])
 {
     char *id = NULL, *desc, *aux = NULL;
     const char *err;