diff --git a/doc.html b/doc.html
index 74948b79..39a74884 100644
--- a/doc.html
+++ b/doc.html
@@ -409,6 +409,8 @@
           properly when loaded from the application menu. You have to put such maps
           to the GPXSee map directory to make them work.</p>
 
+          <p>The same applies to all SQLite-based map formats.</p>
+
           <h3>OpenGL</h3>
           <p>There are numerous OpenGL issues in Qt that cause some kind of broken rendering
           or even an application crash. OpenGL is thus disabled by default even if it can