diff --git a/build.md b/build.md
index b6145fac3e..5579151916 100644
--- a/build.md
+++ b/build.md
@@ -245,7 +245,7 @@ remove the `bc` suffix and the subdirectory in `"compiled"` by providing
 `RACKETBC_SUFFIX=""` to `make bc`.
 
 Along similar lines, you can add a `cs` suffix to the Racket CS
-executables and cause them to use a machine-specific subdirectopry of
+executables and cause them to use a machine-specific subdirectory of
 `"compiled"` by providing `RACKETCS_SUFFIX="cs"` to `make` or `make cs`.
 
 Use `make both` to build both Racket BC and Racket CS, where packages
diff --git a/pkgs/racket-build-guide/build.scrbl b/pkgs/racket-build-guide/build.scrbl
index 0885e490de..76bfc53e28 100644
--- a/pkgs/racket-build-guide/build.scrbl
+++ b/pkgs/racket-build-guide/build.scrbl
@@ -224,7 +224,7 @@ and the subdirectory in @filepath{compiled} by providing
 @exec{RACKETBC_SUFFIX=""} to @exec{make bc}.
 
 Along similar lines, you can add a @litchar{cs} suffix to the Racket
-CS executables and cause them to use a machine-specific subdirectopry
+CS executables and cause them to use a machine-specific subdirectory
 of @filepath{compiled} by providing @exec{RACKETCS_SUFFIX="cs"} to
 @exec{make} or @exec{make cs}.