diff --git a/src/main/frontend/util/fs.cljs b/src/main/frontend/util/fs.cljs
index 2c60ced9e..be59e6919 100644
--- a/src/main/frontend/util/fs.cljs
+++ b/src/main/frontend/util/fs.cljs
@@ -130,6 +130,7 @@
           gp-util/page-name-sanity ;; we want to preserve the case sensitive nature of most file systems, don't lowercase
           (string/replace gp-util/url-encoded-pattern encode-url-percent) ;; pre-encode % in title on demand
           (string/replace reserved-chars-pattern url-encode-file-name)
+          (string/replace #"^\." "%2E") ;; Force percent encoding to distinguish pages with a title starting with a dot from a hidden file.
           (escape-windows-reserved-filebodies) ;; do this before the lowbar encoding to avoid ambiguity
           (escape-namespace-slashes-and-multilowbars)))
 
diff --git a/src/test/frontend/db/name_sanity_test.cljs b/src/test/frontend/db/name_sanity_test.cljs
index 99863950a..5355171de 100644
--- a/src/test/frontend/db/name_sanity_test.cljs
+++ b/src/test/frontend/db/name_sanity_test.cljs
@@ -43,6 +43,7 @@
   (test-page-name "dsa&l dsalfjk jkl.")
   (test-page-name "hls__&l dsalfjk jkl.")
   (test-page-name "CON.")
+  (test-page-name ".NET.")
   (mapv test-page-name fs-util/windows-reserved-filebodies))
 
 (deftest new-path-computation-tests