diff --git a/doc/README.txt b/doc/README.txt
index dd17734..e0599ad 100644
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -13,15 +13,15 @@ a fallback by the archive file extension.
 
 patool supports 7z (.7z), ACE (.ace), ADF (.adf), ALZIP (.alz),
 APE  (.ape), AR (.a), ARC (.arc), ARJ (.arj), BZIP2 (.bz2),
-CAB (.cab), compress (.Z), CPIO (.cpio), DEB  (.deb),  DMS  (.dms),
+CAB (.cab), COMPRESS (.Z), CPIO (.cpio), DEB  (.deb),  DMS  (.dms),
 FLAC  (.flac), GZIP (.gz), ISO (.iso), LRZIP (.lrz), LZH (.lha, .lzh),
 LZIP (.lz), LZMA (.lzma), LZOP (.lzo), RPM (.rpm), RAR (.rar),
 RZIP (.rz),  SHN  (.shn), TAR (.tar), XZ (.xz), ZIP (.zip, .jar) and
 ZOO (.zoo) formats.  It relies on helper applications to handle
 those archive formats (for example bzip2 for BZIP2 archives).
 
-The  archive  formats  TAR (.tar), ZIP (.zip), BZIP2 (.bz2) and
-GZIP (.gz) are supported natively and  do  not  require  helper
+The  archive  formats  TAR, ZIP, BZIP2 and GZIP
+are supported natively and  do  not  require  helper
 applications to be installed.
 
 Examples
diff --git a/doc/patool.1 b/doc/patool.1
index 43ec36a..8203f73 100644
--- a/doc/patool.1
+++ b/doc/patool.1
@@ -26,7 +26,7 @@ by the archive file extension.
 .PP
 \fBpatool\fP supports 7z (.7z), ACE (.ace), ADF (.adf), ALZIP (.alz),
 APE (.ape), AR (.a), ARC (.arc), ARJ (.arj),
-BZIP2 (.bz2), CAB (.cab), compress (.Z), CPIO (.cpio), DEB (.deb), DMS (.dms),
+BZIP2 (.bz2), CAB (.cab), COMPRESS (.Z), CPIO (.cpio), DEB (.deb), DMS (.dms),
 FLAC (.flac), GZIP (.gz), ISO (.iso), LRZIP (.lrz), LZH (.lha, .lzh), LZIP (.lz),
 LZMA (.lzma), LZOP (.lzo), RPM (.rpm), RAR (.rar), RZIP (.rz), SHN (.shn),
 TAR (.tar), XZ (.xz), ZIP (.zip, .jar) and ZOO (.zoo) formats.
diff --git a/doc/patool.txt b/doc/patool.txt
index 492170c..cd1ae7c 100644
--- a/doc/patool.txt
+++ b/doc/patool.txt
@@ -22,7 +22,7 @@ DESCRIPTION
 
        patool supports 7z (.7z), ACE (.ace), ADF (.adf), ALZIP (.alz),
        APE  (.ape), AR (.a), ARC (.arc), ARJ (.arj), BZIP2 (.bz2), CAB
-       (.cab), compress (.Z), CPIO (.cpio), DEB  (.deb),  DMS  (.dms),
+       (.cab), COMPRESS (.Z), CPIO (.cpio), DEB  (.deb),  DMS  (.dms),
        FLAC  (.flac), GZIP (.gz), ISO (.iso), LRZIP (.lrz), LZH (.lha,
        .lzh), LZIP (.lz), LZMA (.lzma), LZOP (.lzo), RPM  (.rpm),  RAR
        (.rar),  RZIP  (.rz),  SHN  (.shn),  TAR  (.tar), XZ (.xz), ZIP