Fix compilation error, fixes bug #690723

diff --git a/gee/concurrentset.vala b/gee/concurrentset.vala
index 854340f..c0d3d75 100644 (file)
--- a/gee/concurrentset.vala
+++ b/gee/concurrentset.vala
@@ -1078,7 +1078,7 @@ public class Gee.ConcurrentSet<G> : AbstractSortedSet<G> {
                }
 
                inline ~Tower () {
-                       uint8 height = get_height();
+                       int height = get_height();
                        for (uint8 i = 0; i < height; i++) {
                                set_succ (null, State.NONE, i);
                                set_backlink (null, i);