diff --git a/source/ftrack_api/plugin.py b/source/ftrack_api/plugin.py
index 6e05e8be..f17ee9b3 100644
--- a/source/ftrack_api/plugin.py
+++ b/source/ftrack_api/plugin.py
@@ -29,7 +29,7 @@ def load_source(modname, filename):
 
 
 def discover(paths, positional_arguments=None, keyword_arguments=None):
-    """Find and load plugins in search *paths*.
+    R"""Find and load plugins in search *paths*.
 
     Each discovered module should implement a register function that accepts
     *positional_arguments* and *keyword_arguments* as \*args and \*\*kwargs
diff --git a/source/ftrack_api/structure/standard.py b/source/ftrack_api/structure/standard.py
index 388e1a10..69fad473 100644
--- a/source/ftrack_api/structure/standard.py
+++ b/source/ftrack_api/structure/standard.py
@@ -130,7 +130,7 @@ def sanitise_for_filesystem(self, value):
 
         value = unicodedata.normalize("NFKD", str(value)).encode("ascii", "ignore")
         value = re.sub(
-            "[^\w\.-]", self.illegal_character_substitute, value.decode("utf-8")
+            r"[^\w\.-]", self.illegal_character_substitute, value.decode("utf-8")
         )
         return str(value.strip().lower())