diff --git a/doc/guides/startup_files.md b/doc/guides/startup_files.md
index 7ca2ab720..f96cb5bdb 100644
--- a/doc/guides/startup_files.md
+++ b/doc/guides/startup_files.md
@@ -27,7 +27,7 @@ ## The magic names
 :::
 
 ## Searching drives for startup files
-If `shell.allow_disk_startup` is true (which it is by default), then the CC computer will look for disk drives that have atleast one startup file, it only uses the first disk that fulfils this criteria. Disk drives are searched in the order they are found via `peripheral.getNames()`. It then runs the found startup files as described below.
+If `shell.allow_disk_startup` is true (which it is by default), then the CC computer will look for disk drives that have at least one startup file, it only uses the first disk that fulfils this criteria. Disk drives are searched in the order they are found via `peripheral.getNames()`. It then runs the found startup files as described below.
 
 If `shell.allow_startup` is true (which it is by default) and no disk startup file was used, then the computer will look for startup files in it's internal storage. Valid files are ran as described below.