diff --git a/docs/sphinx/kerneldoc.py b/docs/sphinx/kerneldoc.py
index 8189c33b..7acf0996 100644
--- a/docs/sphinx/kerneldoc.py
+++ b/docs/sphinx/kerneldoc.py
@@ -130,7 +130,7 @@ def run(self):
             result = ViewList()
 
             lineoffset = 0;
-            line_regex = re.compile("^#define LINENO ([0-9]+)$")
+            line_regex = re.compile(r"^\.\. LINENO ([0-9]+)$")
             for line in lines:
                 match = line_regex.search(line)
                 if match:
@@ -138,7 +138,7 @@ def run(self):
                     lineoffset = int(match.group(1)) - 1
                     # we must eat our comments since the upset the markup
                 else:
-                    doc = env.srcdir + "/" + env.docname + ":" + str(self.lineno)
+                    doc = str(env.srcdir) + "/" + env.docname + ":" + str(self.lineno)
                     result.append(line, doc + ": " + filename, lineoffset)
                     lineoffset += 1