diff --git a/docs/doxygen/overviews/xrc_format.h b/docs/doxygen/overviews/xrc_format.h
index bd7f0e659b..677bb9e83f 100644
--- a/docs/doxygen/overviews/xrc_format.h
+++ b/docs/doxygen/overviews/xrc_format.h
@@ -2147,7 +2147,7 @@ Whether a range has positive or negative IDs, [start] is always a smaller
 number than [end]; so code like this works as expected:
 
 @code
-for (int n=XRCID("foo[start]"); n < XRCID("foo[end]"); ++n)
+for (int n=XRCID("foo[start]"); n <= XRCID("foo[end]"); ++n)
     ...
 @endcode