Index: docs/UsersManual.rst
===================================================================
--- docs/UsersManual.rst
+++ docs/UsersManual.rst
@@ -1735,11 +1735,11 @@
 .. option:: -fprofile-generate[=<dirname>]
 
   The ``-fprofile-generate`` and ``-fprofile-generate=`` flags will use
-  an alterantive instrumentation method for profile generation. When
+  an alternative instrumentation method for profile generation. When
   given a directory name, it generates the profile file
   ``default_%m.profraw`` in the directory named ``dirname`` if specified.
   If ``dirname`` does not exist, it will be created at runtime. ``%m`` specifier
-  will be substibuted with a unique id documented in step 2 above. In other words,
+  will be substituted with a unique id documented in step 2 above. In other words,
   with ``-fprofile-generate[=<dirname>]`` option, the "raw" profile data automatic
   merging is turned on by default, so there will no longer any risk of profile
   clobbering from different running processes.  For example,