diff --git a/presto2gemini.py b/presto2gemini.py
index 278b1c9..606b828 100755
--- a/presto2gemini.py
+++ b/presto2gemini.py
@@ -151,10 +151,10 @@ if input_ok:
 """, file=gemfile)
     for line in raw.readlines():
         line=line[:-1] # Chop end-of-line
-        if re.search("^\s*#", line):
+        if re.search(r"^\s*#", line):
             continue # Ignore comments
         else:
-            match = re.search("^\s*:([a-zA-Z]+):\s*(.*)", line)
+            match = re.search(r"^\s*:([a-zA-Z]+):\s*(.*)", line)
             if match:
                 if match.group(1) == "Issued":
                     issued = match.group(2)