diff --git a/left/view/template.go b/left/view/template.go
index 7bce3376..eb04d8b8 100644
--- a/left/view/template.go
+++ b/left/view/template.go
@@ -9,13 +9,13 @@ import (
 )
 
 func parseTemplate(name string, templateFS fs.FS) *template.Template {
-	return template.Must(template.New(name).Funcs(helperMap).ParseFS(templateFS, name, "**/*.gohtml"))
+	return template.Must(template.New(name).Funcs(helperMap).ParseFS(templateFS, name, "**/*.html"))
 }
 
 const (
-	ErrorPage    string = "error.gohtml"
-	IndexPage    string = "index.gohtml"
-	EnvelopePage string = "envelope.gohtml"
+	ErrorPage    string = "error.html"
+	IndexPage    string = "index.html"
+	EnvelopePage string = "envelope.html"
 )
 
 type IndexData struct {
diff --git a/left/view/template/envelope.gohtml b/left/view/template/envelope.html
similarity index 100%
rename from left/view/template/envelope.gohtml
rename to left/view/template/envelope.html
diff --git a/left/view/template/error.gohtml b/left/view/template/error.html
similarity index 100%
rename from left/view/template/error.gohtml
rename to left/view/template/error.html
diff --git a/left/view/template/index.gohtml b/left/view/template/index.html
similarity index 100%
rename from left/view/template/index.gohtml
rename to left/view/template/index.html
diff --git a/left/view/template/layout/default.gohtml b/left/view/template/layout/default.html
similarity index 100%
rename from left/view/template/layout/default.gohtml
rename to left/view/template/layout/default.html
diff --git a/left/view/template/shim/nav.gohtml b/left/view/template/shim/nav.html
similarity index 100%
rename from left/view/template/shim/nav.gohtml
rename to left/view/template/shim/nav.html