diff --git a/src/lcf/dbbitarray.h b/src/lcf/dbbitarray.h
index 5b3bdbc5..3c6c4b8d 100644
--- a/src/lcf/dbbitarray.h
+++ b/src/lcf/dbbitarray.h
@@ -91,8 +91,8 @@ class DBBitProxyIterator {
 		DBBitProxyIterator operator--(int) { auto iter = *this; --(*this); return iter; }
 
 		void swap(DBBitProxyIterator& o) {
-			std::swap(_proxy._base, o._base);
-			std::swap(_proxy._idx, o._idx);
+			std::swap(_proxy._base, o._proxy._base);
+			std::swap(_proxy._idx, o._proxy._idx);
 		}
 
 		friend bool operator==(DBBitProxyIterator l, DBBitProxyIterator r) { return l->index() == r->index(); }