diff --git a/docs/MakefileGuide.html b/docs/MakefileGuide.html
index 1484b02..d8c5029 100644
--- a/docs/MakefileGuide.html
+++ b/docs/MakefileGuide.html
@@ -552,7 +552,7 @@
 <div class="doc_text">
   <p>This utility target, only available when <tt>$(PROJ_OBJ_ROOT)</tt> is not 
   the same as <tt>$(PROJ_SRC_ROOT)</tt>, will completely clean the
-  <tt>$(PROJ_OBJ_ROOT)</tt> directoy by removing its content entirely and 
+  <tt>$(PROJ_OBJ_ROOT)</tt> directory by removing its content entirely and 
   reconfiguring the directory. This returns the <tt>$(PROJ_OBJ_ROOT)</tt> 
   directory to a completely fresh state. All content in the directory except 
   configured files and top-level makefiles will be lost.</p>