diff --git a/doc/src/connection.rst b/doc/src/connection.rst
index b31c2d29..76f1332c 100644
--- a/doc/src/connection.rst
+++ b/doc/src/connection.rst
@@ -639,7 +639,7 @@ The ``connection`` class
         :param new_oid: Create a new object using the specified OID. The
             function raises `~psycopg2.OperationalError` if the OID is already
             in use. Default is 0, meaning assign a new one automatically.
-        :param new_file: The name of a file to be imported in the the database
+        :param new_file: The name of a file to be imported in the database
             (using the |lo_import|_ function)
         :param lobject_factory: Subclass of
             `~psycopg2.extensions.lobject` to be instantiated.
@@ -749,7 +749,7 @@ The ``connection`` class
 
     .. rubric:: informative methods of the native connection
 
-    .. note:: 
+    .. note::
 
         These methods are better accessed using the `~connection.info`
         attributes and may be dropped in future versions.
diff --git a/doc/src/extensions.rst b/doc/src/extensions.rst
index 22d9b5db..d8c07a42 100644
--- a/doc/src/extensions.rst
+++ b/doc/src/extensions.rst
@@ -413,9 +413,9 @@ deal with Python objects adaptation:
 
     .. method:: getquoted()
 
-        Return the string enclosed in single quotes.  Any single quote
-        appearing in the the string is escaped by doubling it according to SQL
-        string constants syntax.  Backslashes are escaped too.
+        Return the string enclosed in single quotes. Any single quote appearing
+        in the string is escaped by doubling it according to SQL string
+        constants syntax. Backslashes are escaped too.
 
             >>> QuotedString(r"O'Reilly").getquoted()
             "'O''Reilly'"
@@ -758,8 +758,8 @@ methods.  The level can be set to one of the following constants:
 
 .. data:: ISOLATION_LEVEL_READ_COMMITTED
 
-    This is usually the the default PostgreSQL value, but a different default
-    may be set in the database configuration.
+    This is usually the default PostgreSQL value, but a different default may
+    be set in the database configuration.
 
     A new transaction is started at the first `~cursor.execute()` command on a
     cursor and at each new `!execute()` after a `~connection.commit()` or a
diff --git a/psycopg/conninfo_type.c b/psycopg/conninfo_type.c
index 0e847bef..3f485aa2 100644
--- a/psycopg/conninfo_type.c
+++ b/psycopg/conninfo_type.c
@@ -147,7 +147,7 @@ port_get(connInfoObject *self)
 
 
 static const char options_doc[] =
-"The command-line options passed in the the connection request.\n"
+"The command-line options passed in the connection request.\n"
 "\n"
 ".. seealso:: libpq docs for `PQoptions()`__ for details.\n"
 ".. __: https://www.postgresql.org/docs/current/static/libpq-status.html"
diff --git a/psycopg/psycopgmodule.c b/psycopg/psycopgmodule.c
index 8ee23283..c6f09633 100644
--- a/psycopg/psycopgmodule.c
+++ b/psycopg/psycopgmodule.c
@@ -673,8 +673,8 @@ RAISES_NEG static int
 basic_errors_init(PyObject *module)
 {
     /* the names of the exceptions here reflect the organization of the
-       psycopg2 module and not the fact the the original error objects
-       live in _psycopg */
+       psycopg2 module and not the fact the original error objects live in
+       _psycopg */
 
     int i;
     PyObject *dict = NULL;