diff --git a/handler/app/dirs.go b/handler/app/dirs.go
index 18f158ce..592a902e 100644
--- a/handler/app/dirs.go
+++ b/handler/app/dirs.go
@@ -464,6 +464,7 @@ func (dir Dirs) assets(nameDir, unid string) map[string][2]string {
 			}
 		}
 	}
+	clear(files)
 	return matches
 }
 
diff --git a/handler/html3/template.go b/handler/html3/template.go
index 2229d11b..8b8bfebf 100644
--- a/handler/html3/template.go
+++ b/handler/html3/template.go
@@ -26,7 +26,9 @@ const (
 
 func emptyFS(fs embed.FS) bool {
 	entries, err := fs.ReadDir(".")
-	return err != nil || len(entries) == 0
+	result := err != nil || len(entries) == 0
+	clear(entries)
+	return result
 }
 
 // GlobTo returns the path to the template file.
diff --git a/handler/htmx/template.go b/handler/htmx/template.go
index 3667dbc1..c26a4bf2 100644
--- a/handler/htmx/template.go
+++ b/handler/htmx/template.go
@@ -25,7 +25,9 @@ func GlobTo(name string) string {
 
 func emptyFS(fs embed.FS) bool {
 	entries, err := fs.ReadDir(".")
-	return err != nil || len(entries) == 0
+	result := err != nil || len(entries) == 0
+	clear(entries)
+	return result
 }
 
 // Templates returns a map of the templates.