diff --git a/book/A-git-in-other-environments/sections/powershell.asc b/book/A-git-in-other-environments/sections/powershell.asc
index d6f5e68d7..5fd049e8c 100644
--- a/book/A-git-in-other-environments/sections/powershell.asc
+++ b/book/A-git-in-other-environments/sections/powershell.asc
@@ -1,7 +1,7 @@
 [[_git_powershell]]
 === Git in PowerShell
 
-(((powershell)))(((tab completion, powershell)))(((shell prompts, powershell)))
+(((PowerShell)))(((tab completion, PowerShell)))(((shell prompts, PowerShell)))
 (((posh-git)))
 The legacy command-line terminal on Windows (`cmd.exe`) isn't really capable of a customized Git experience, but if you're using PowerShell, you're in luck.
 This also works if you're running PowerShell Core on Linux or macOS.