diff --git a/lisp/progmodes/c-ts-mode.el b/lisp/progmodes/c-ts-mode.el
index 2ac163d7a7e..6c406a8acd9 100644
--- a/lisp/progmodes/c-ts-mode.el
+++ b/lisp/progmodes/c-ts-mode.el
@@ -463,7 +463,8 @@ MODE is either `c' or `cpp'."
            ,@(when (eq mode 'cpp)
                '(((node-is "access_specifier") parent-bol 0)
                  ;; Indent the body of namespace definitions.
-                 ((parent-is "declaration_list") parent-bol c-ts-mode-indent-offset)))
+                 ((parent-is "declaration_list") parent-bol c-ts-mode-indent-offset)
+                 ((parent-is "template_declaration") parent-bol 0)))
 
 
            ;; int[5] a = { 0, 0, 0, 0 };
diff --git a/test/lisp/progmodes/c-ts-mode-resources/indent.erts b/test/lisp/progmodes/c-ts-mode-resources/indent.erts
index 24b244c1611..599173832b5 100644
--- a/test/lisp/progmodes/c-ts-mode-resources/indent.erts
+++ b/test/lisp/progmodes/c-ts-mode-resources/indent.erts
@@ -458,6 +458,34 @@ namespace test {
 }
 =-=-=
 
+Name: Namespace and template (bug#72263)
+
+=-=
+namespace A {
+
+T myfunction1(const char *fname)
+{
+}
+
+template <class T>
+T myfunction2(const char *fname)
+{
+}
+}
+=-=
+namespace A {
+
+  T myfunction1(const char *fname)
+  {
+  }
+
+  template <class T>
+  T myfunction2(const char *fname)
+  {
+  }
+}
+=-=-=
+
 Code:
   (lambda ()
     (c-ts-mode)