diff --git a/setup.cfg b/setup.cfg
index 486c90fe..76b73d5a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,18 +1,21 @@
 [build_ext]
+
 define=PSYCOPG_EXTENSIONS,PSYCOPG_DISPLAY_SIZE,HAVE_PQFREEMEM,HAVE_PQPROTOCOL3
 # PSYCOPG_DEBUG can be added to enable verbose debug information
 # PSYCOPG_OWN_QUOTING can be added above but it is deprecated
 
-# Use Python datatime objects for date/time representation.
+# set to 1 to use Python datatime objects for date/time representation
 use_pydatetime=1
 
 # include_dirs is the preferred method for locating postgresql headers,
 # but some extra checks on sys.platform will still be done in setup.py
 include_dirs=.:/usr/include/postgresql:/usr/include/postgresql/server
 
-# if postgresql is installed somewhere weird, just addthe right path in
+# if postgresql is installed somewhere weird, just add the right path in
 # library_dir any extra libraries required to link in libraries
 #library_dirs=
+#libraries=
+
 
 # Windows-only definitions
 # ------------------------