diff --git a/src/hashset.hpp b/src/hashset.hpp
index 3226e9df..d4629d78 100644
--- a/src/hashset.hpp
+++ b/src/hashset.hpp
@@ -76,7 +76,7 @@ public:
     size_t size;
     str_set_itr itr;
 
-    size = 
+    size = str_set_size(&_str_set);
     itr = str_set_get_or_insert(&_str_set,str_);