diff --git a/modules/dirs.py b/modules/dirs.py
index 8801bb45..eaf82ddb 100644
--- a/modules/dirs.py
+++ b/modules/dirs.py
@@ -27,10 +27,10 @@ def find_start(dir):
     max_env = 0
     try:
         for f in os.listdir(dir + 'pkl/'):
-            if re.match('env_(\d+).*?\.pkl', f):
-                env_num = int(re.match('env_(\d+).*?\.pkl', f)[1])
+            if re.match(r'env_(\d+).*?\.pkl', f):
+                env_num = int(re.match(r'env_(\d+).*?\.pkl', f)[1])
                 if env_num > max_env:
                     max_env = env_num
         return(max_env+1)
     except:
-        raise TypeError("We have a problem.")
\ No newline at end of file
+        raise TypeError("We have a problem.")