diff --git a/vignettes/foreach.Rmd b/vignettes/foreach.Rmd
index 435d995..6d9c345 100644
--- a/vignettes/foreach.Rmd
+++ b/vignettes/foreach.Rmd
@@ -3,7 +3,7 @@ title: Using the `foreach` package
 author: Steve Weston
 output: rmarkdown::html_vignette
 vignette: >
-  %\VignetteIndexEntry{foreach}
+  %\VignetteIndexEntry{Using the `foreach` package}
   %\VignetteEngine{knitr::rmarkdown}
   %\VignetteEncoding{utf8}
 ---
diff --git a/vignettes/nested.Rmd b/vignettes/nested.Rmd
index 2e3cb8f..9515c0d 100644
--- a/vignettes/nested.Rmd
+++ b/vignettes/nested.Rmd
@@ -3,7 +3,7 @@ title: Nesting `foreach` loops
 author: Steve Weston
 output: rmarkdown::html_vignette
 vignette: >
-  %\VignetteIndexEntry{nested}
+  %\VignetteIndexEntry{Nesting `foreach` loops}
   %\VignetteEngine{knitr::rmarkdown}
   %\VignetteEncoding{utf8}
 ---