Link to the warning.

diff --git a/src/examples/example_01.rst b/src/examples/example_01.rst
index a13e0bbe49bc6821c85408e9f97680804630bce7..58540869cdef8d5f36d730557f297f12330773f3 100644 (file)
--- a/src/examples/example_01.rst
+++ b/src/examples/example_01.rst
@@ -24,8 +24,8 @@ A couple of things should be noted:
 
 * Default case (when none of the rules matched) is handled properly with ``*`` rule (line 16).
   **Never forget to handle default case, otherwise control flow in lexer will be undefined for some input strings.**
-  Use [-Wundefined-control-flow] re2c warning: it will warn you about unhandled default case and
-  show input patterns that are not covered by the rules.
+  Use `[-Wundefined-control-flow] <../manual/warnings/wundefined_control_flow.html>`_ re2c warning:
+  it will warn you about unhandled default case and show input patterns that are not covered by the rules.
 
 * We use the *sentinel* method to stop at the end of input (``re2c:yyfill:enable = 0;`` at line 8).
   Sentinel is a special character that can never occur in well-formed input.