2 files changed, 2 insertions, 2 deletions

diff --git a/.flake8 b/.flake8
index 9c8621cf..4ce80256 100644
--- a/.flake8
+++ b/.flake8
@@ -1,4 +1,4 @@
 [flake8]
-ignore=E127,E402,E501,E731,E128,W503,E741
+ignore=E127,E402,E501,E731,E128,W503,E741,W504
 exclude=misc,subprojects
 builtins=DATADIR
diff --git a/giscanner/utils.py b/giscanner/utils.py
index 67d6a17f..bdb90714 100644
--- a/giscanner/utils.py
+++ b/giscanner/utils.py
@@ -83,7 +83,7 @@ def to_underscores_noprefix(name):
     return name
 
 
-_libtool_pat = re.compile("dlname='([A-z0-9\.\-\+]+)'\n")
+_libtool_pat = re.compile("dlname='([A-z0-9\\.\\-\\+]+)'\n")
 
 
 def _extract_dlname_field(la_file):