diff --git a/manual/edit.rst b/manual/edit.rst
index ea2acab655..ec3b443cf3 100644
--- a/manual/edit.rst
+++ b/manual/edit.rst
@@ -670,8 +670,8 @@ common in your book and to run a simple search and replace on individual words.
 
 .. note::
     If you make any changes to the book by editing files while the spell check
-    tool is open, you should click the :guilabel:`Refresh` button in the spell
-    check tool. If you do not do this and continue to use the spell check tool,
+    tool is open, you should click the :guilabel:`Refresh` button in the Spell
+    check tool. If you do not do this and continue to use the Spell check tool,
     you could lose the changes you have made in the editor.
 
 Adding new dictionaries
diff --git a/src/calibre/debug.py b/src/calibre/debug.py
index cb477159e5..f097403c24 100644
--- a/src/calibre/debug.py
+++ b/src/calibre/debug.py
@@ -54,7 +54,7 @@ this command starts an embedded Python interpreter. You can also run the main
 calibre GUI, the calibre viewer and the calibre editor in debug mode.
 
 It also contains interfaces to various bits of calibre that do not have
-dedicated command line tools, such as font subsetting, the e-book diff tool and so
+dedicated command line tools, such as font subsetting, the E-book diff tool and so
 on.
 
 You can also use %prog to run standalone scripts. To do that use it like this: