diff --git a/topics/preface.adoc b/topics/preface.adoc
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new mode 100644
index 860e9fd39f3..2636040a389
--- a/topics/preface.adoc
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@@ -1,6 +1,6 @@
 == Preface
 
-In some of the example listings, what is meant to be displayed on one line does not fit inside the available page width.These lines have been broken up. A '\' at the end of a line means that a break has been introduced to fit in the page, with the following lines indented.
+In some of the example listings, what is meant to be displayed on one line does not fit inside the available page width. These lines have been broken up. A '\' at the end of a line means that a break has been introduced to fit in the page, with the following lines indented.
 So: 
 
 [source]