diff --git a/src/common/helpers.py b/src/common/helpers.py
index 988df203d..09a791dd2 100644
--- a/src/common/helpers.py
+++ b/src/common/helpers.py
@@ -459,7 +459,7 @@ def get_output_of_command(command):
     return output
 
 def get_windows_reg_env(varname, default=''):
-    """
+    r"""
     Ask for paths commonly used but not exposed as ENVs in english Windows 2003
     those are:
             'AppData' = %USERPROFILE%\Application Data (also an ENV)
diff --git a/src/gui_interface.py b/src/gui_interface.py
index d06a379d0..7967fefb5 100644
--- a/src/gui_interface.py
+++ b/src/gui_interface.py
@@ -1943,9 +1943,9 @@ class Interface:
             # We match from our list of emoticons, but they must either have
             # whitespace, or another emoticon next to it to match successfully
             # [\w.] alphanumeric and dot (for not matching 8) in (2.8))
-            emoticons_pattern = '|' + '(?:(?<![\w.]' + \
+            emoticons_pattern = '|' + r'(?:(?<![\w.]' + \
                 emoticons_pattern_prematch[:-1] + '))' + '(?:' + \
-                emoticons_pattern[:-1] + ')' + '(?:(?![\w]' + \
+                emoticons_pattern[:-1] + ')' + r'(?:(?![\w]' + \
                 emoticons_pattern_postmatch[:-1] + '))'
 
         # because emoticons match later (in the string) they need to be after
diff --git a/src/plugins/pluginmanager.py b/src/plugins/pluginmanager.py
index ccae53d95..6ee0974e5 100644
--- a/src/plugins/pluginmanager.py
+++ b/src/plugins/pluginmanager.py
@@ -404,7 +404,7 @@ class PluginManager(metaclass=Singleton):
     @staticmethod
     @log_calls('PluginManager')
     def scan_dir_for_plugins(path, scan_dirs=True):
-        '''
+        r'''
         Scans given directory for plugin classes.
 
         :param path: directory to scan for plugins