diff --git a/lib/strings.nix b/lib/strings.nix
index 6dbb3d3a3e8..4f9509ffe7c 100644
--- a/lib/strings.nix
+++ b/lib/strings.nix
@@ -244,7 +244,7 @@ rec {
      Also note that Nix treats strings as a list of bytes and thus doesn't
      handle unicode.
 
-     Type: stringtoCharacters :: string -> [string]
+     Type: stringToCharacters :: string -> [string]
 
      Example:
        stringToCharacters ""