diff --git a/chapter06/gzip.xml b/chapter06/gzip.xml
index c0347e5b8..ecb86a835 100644
--- a/chapter06/gzip.xml
+++ b/chapter06/gzip.xml
@@ -125,7 +125,7 @@ zegrep, zfgrep, zforce, zgrep, zless, zmore, and znew</seg></seglistitem>
 <varlistentry id="zcat">
 <term><command>zcat</command></term>
 <listitem>
-<para>Uncompresses the given gzipped files to standard output</para>
+<para>Decompresses the given gzipped files to standard output</para>
 <indexterm zone="ch-system-gzip zcat"><primary sortas="b-zcat">zcat</primary></indexterm>
 </listitem>
 </varlistentry>
diff --git a/chapter06/zlib.xml b/chapter06/zlib.xml
index 0c9fa8abc..c11a41f62 100644
--- a/chapter06/zlib.xml
+++ b/chapter06/zlib.xml
@@ -94,7 +94,7 @@ make</userinput></screen>
 <varlistentry id="libz">
 <term><filename class="libraryfile">libz</filename></term>
 <listitem>
-<para>Contains compression and un-compression
+<para>Contains compression and decompression
 functions used by some programs</para>
 <indexterm zone="ch-system-zlib libz"><primary sortas="c-libz">libz</primary></indexterm>
 </listitem>