diff --git a/doc/index.md b/doc/index.md
index 3d23ab85a2..d1502ba1b6 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -106,7 +106,7 @@ X and Linux. They require about 5 GB of disk space and 5 GB of RAM.
 * [Genbank and GTDB databases and taxonomy files](databases.md)
 * [Python examples using the API](api-example.md)
 * [Publications about sourmash](publications.md)
-* [A guide to the internals of sourmash](sourmash-internals.md)
+* [A guide to the internal design and structure of sourmash](sourmash-internals.md)
 * [Funding acknowledgements](funding.md)
 
 ## Developing and extending sourmash
diff --git a/doc/sidebar.md b/doc/sidebar.md
index 9303bcf50f..b0d5e6e22d 100644
--- a/doc/sidebar.md
+++ b/doc/sidebar.md
@@ -36,7 +36,7 @@ X and Linux. They require about 5 GB of disk space and 5 GB of RAM.
 * [Genbank and GTDB databases and taxonomy files](databases.md)
 * [Python examples using the API](api-example.md)
 * [Publications about sourmash](publications.md)
-* [A guide to the internals of sourmash](sourmash-internals.md)
+* [A guide to the internal design and structure of sourmash](sourmash-internals.md)
 * [Funding acknowledgements](funding.md)
 
 ## Developing and extending sourmash
diff --git a/doc/sourmash-internals.md b/doc/sourmash-internals.md
index fd26293a67..a615844290 100644
--- a/doc/sourmash-internals.md
+++ b/doc/sourmash-internals.md
@@ -1,4 +1,4 @@
-# A guide to the internals of sourmash
+# A guide to the internal design and structure of sourmash
 
 ```{contents} Contents
 :depth: 3