diff --git a/pycaching/geocaching.py b/pycaching/geocaching.py
index a15d95b..c44a8f7 100644
--- a/pycaching/geocaching.py
+++ b/pycaching/geocaching.py
@@ -273,7 +273,7 @@ def get_logged_user(self, login_page=None):
 
         logging.debug("Checking for already logged user.")
         js_content = "\n".join(login_page.find_all(string=lambda i: isinstance(i, Script)))
-        m = re.search(r'"username":\s*"(.*)"', js_content)
+        m = re.search(r'"username"\s*:\s*"([^"]+)"', js_content)
         return m.group(1) if m else None
 
     def search(