diff --git a/equipment.c b/equipment.c
index d2c7891ae..e4f880f64 100644
--- a/equipment.c
+++ b/equipment.c
@@ -303,7 +303,7 @@ int cylinder_none(cylinder_t *cyl)
 		!cyl->end.mbar;
 }
 
-static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
+static void set_one_cylinder(cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
 {
 	unsigned int start, end;
 
@@ -346,7 +346,7 @@ void show_dive_equipment(struct dive *dive)
 		cylinder_t *cyl = dive->cylinder+i;
 
 		gtk_list_store_append(model, &iter);
-		set_one_cylinder(i, cyl, model, &iter);
+		set_one_cylinder(cyl, model, &iter);
 	}
 }
 
@@ -740,7 +740,7 @@ static void edit_cb(GtkButton *button, GtkTreeView *tree_view)
 	if (!edit_cylinder_dialog(index, &cyl))
 		return;
 
-	set_one_cylinder(index, &cyl, model, &iter);
+	set_one_cylinder(&cyl, model, &iter);
 	repaint_dive();
 }
 
@@ -756,7 +756,7 @@ static void add_cb(GtkButton *button, GtkTreeView *tree_view)
 		return;
 
 	gtk_list_store_append(model, &iter);
-	set_one_cylinder(index, &cyl, model, &iter);
+	set_one_cylinder(&cyl, model, &iter);
 
 	selection = gtk_tree_view_get_selection(tree_view);
 	gtk_tree_selection_select_iter(selection, &iter);
diff --git a/profile.c b/profile.c
index 822e30c0e..137ed6f88 100644
--- a/profile.c
+++ b/profile.c
@@ -1014,8 +1014,7 @@ static void dump_pr_track(pr_track_t **track_pr)
 	}
 }
 
-static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *pi,
-					pr_track_t **track_pr)
+static void fill_missing_tank_pressures(struct plot_info *pi, pr_track_t **track_pr)
 {
 	pr_track_t *list = NULL;
 	pr_track_t *nlist = NULL;
@@ -1338,7 +1337,7 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str
 	pi->meandepth = dive->meandepth.mm;
 
 	if (missing_pr) {
-		fill_missing_tank_pressures(dive, pi, track_pr);
+		fill_missing_tank_pressures(pi, track_pr);
 	}
 	for (cyl = 0; cyl < MAX_CYLINDERS; cyl++)
 		list_free(track_pr[cyl]);