diff --git a/doc/src/usage.rst b/doc/src/usage.rst
index 1d808040..f4690937 100644
--- a/doc/src/usage.rst
+++ b/doc/src/usage.rst
@@ -1052,7 +1052,7 @@ using the |lo_import|_ and |lo_export|_ libpq functions.
       (`~connection.server_version` must be >= ``90300``).
 
     If Psycopg was built with 64 bits large objects support (i.e. the first
-    two contidions above are verified), the `psycopg2.__version__` constant
+    two conditions above are verified), the `psycopg2.__version__` constant
     will contain the ``lo64`` flag.  If any of the contition is not met
     several `!lobject` methods will fail if the arguments exceed 2GB.