diff --git a/manual/gui.rst b/manual/gui.rst
index b082774ee3..e527d1e405 100644
--- a/manual/gui.rst
+++ b/manual/gui.rst
@@ -342,7 +342,7 @@ Two other kinds of searches are available: equality search and search using `reg
 
 Equality searches are indicated by prefixing the search string with an equals sign (=). For example, the query
 ``tag:"=science"`` will match "science", but not "science fiction" or "hard science". Regular expression searches are
-indicated by prefixing the search string with a tilde (~). Any `python-compatible regular expression <http://docs.python.org/library/re.html>`_ can
+indicated by prefixing the search string with a tilde (~). Any `python-compatible regular expression <https://docs.python.org/2/library/re.html>`_ can
 be used. Note that backslashes used to escape special characters in reqular expressions must be doubled because single backslashes will be removed during query parsing. For example, to match a literal parenthesis you must enter ``\\(``. Regular expression searches are 'contains' searches unless the expression contains anchors.
 
 Should you need to search for a string with a leading equals or tilde, prefix the string with a backslash.