diff --git a/LDP/guide/docbook/Bash-Beginners-Guide/chap7.xml b/LDP/guide/docbook/Bash-Beginners-Guide/chap7.xml
index 184a1625..30f9cf17 100644
--- a/LDP/guide/docbook/Bash-Beginners-Guide/chap7.xml
+++ b/LDP/guide/docbook/Bash-Beginners-Guide/chap7.xml
@@ -55,7 +55,7 @@
 <row><entry>[ <filename>FILE1</filename> <option>-ot</option> <filename>FILE2</filename> ]</entry><entry>True if <filename>FILE1</filename> is older than <filename>FILE2</filename>, or is <filename>FILE2</filename> exists and <filename>FILE1</filename> does not.</entry></row>
 <row><entry>[ <filename>FILE1</filename> <option>-ef</option> <filename>FILE2</filename> ]</entry><entry>True if <filename>FILE1</filename> and <filename>FILE2</filename> refer to the same device and inode numbers.</entry></row>
 <row><entry>[ <option>-o</option> OPTIONNAME ]</entry><entry>True if shell option <quote>OPTIONNAME</quote> is enabled.</entry></row>
-<row><entry><option>[ -z</option> STRING ]</entry><entry>True if the length if <quote>STRING</quote> is zero.</entry></row>
+<row><entry><option>[ -z</option> STRING ]</entry><entry>True if the length of <quote>STRING</quote> is zero.</entry></row>
 <row><entry><option>[ -n</option> STRING ] or [ STRING ]</entry><entry>True if the length of <quote>STRING</quote> is non-zero.</entry></row>
 <row><entry>[ STRING1 == STRING2 ] </entry><entry>True if the strings are equal.  <quote>=</quote> may be used instead of <quote>==</quote> for strict POSIX compliance.</entry></row>
 <row><entry>[ STRING1 != STRING2 ] </entry><entry>True if the strings are not equal.</entry></row>