diff --git a/FourmiCrawler/settings.py b/FourmiCrawler/settings.py
index 338f224..ace60ab 100644
--- a/FourmiCrawler/settings.py
+++ b/FourmiCrawler/settings.py
@@ -23,5 +23,5 @@ FEED_FORMAT = 'jsonlines'
 
 # [todo] - Check for repercussions on spoofing the user agent
 
-# USER_AGENT = 'FourmiCrawler (+http://www.yourdomain.com)'
-USER_AGENT = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36'
+USER_AGENT = 'Fourmi'
+# USER_AGENT = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.137 Safari/537.36'
diff --git a/FourmiCrawler/sources/ChemSpider.py b/FourmiCrawler/sources/ChemSpider.py
index 23b25fe..6ca5382 100644
--- a/FourmiCrawler/sources/ChemSpider.py
+++ b/FourmiCrawler/sources/ChemSpider.py
@@ -19,7 +19,7 @@ class ChemSpider(Source):
     somewhere.
     """
 
-    website = 'http://www\.chemspider\.com/.*'
+    website = 'http://www\\.chemspider\\.com/.*'
 
     search = 'Search.asmx/SimpleSearch?query=%s&token='
     structure = 'Chemical-Structure.%s.html'
@@ -293,6 +293,6 @@ class ChemSpider(Source):
         """
         if compound in self.ignore_list or self.cfg['token'] == '':
             return None
-        searchurl = self.website[:-2] + self.search % compound
+        searchurl = self.website[:-2].replace("\\", "") + self.search % compound
         log.msg('chemspider compound', level=log.DEBUG)
         return Request(url=searchurl, callback=self.parse_searchrequest)
diff --git a/FourmiCrawler/sources/NIST.py b/FourmiCrawler/sources/NIST.py
index 904df80..4ad93f5 100644
--- a/FourmiCrawler/sources/NIST.py
+++ b/FourmiCrawler/sources/NIST.py
@@ -18,7 +18,7 @@ class NIST(Source):
     This plugin manages searching for a chemical on the NIST website
     and parsing the resulting page if the chemical exists on NIST.
     """
-    website = "http://webbook\.nist\.gov/.*"
+    website = "http://webbook\\.nist\\.gov/.*"
 
     search = 'cgi/cbook.cgi?Name=%s&Units=SI&cTP=on'
 
@@ -329,5 +329,5 @@ class NIST(Source):
         """
         if compound not in self.ignore_list:
             self.ignore_list.update(compound)
-            return Request(url=self.website[:-2] + self.search % compound,
+            return Request(url=self.website[:-2].replace("\\", "") + self.search % compound,
                            callback=self.parse)
diff --git a/FourmiCrawler/sources/PubChem.py b/FourmiCrawler/sources/PubChem.py
index 521b02d..5947e54 100644
--- a/FourmiCrawler/sources/PubChem.py
+++ b/FourmiCrawler/sources/PubChem.py
@@ -16,8 +16,8 @@ class PubChem(Source):
     """
 
     #PubChem has its data on compound name, properties and their values on different html pages, so different URLs used
-    website = 'https://.*\.ncbi\.nlm\.nih\.gov/.*'
-    website_www = 'https://www.ncbi.nlm.nih.gov/.*'
+    website = 'https://.*\\.ncbi\\.nlm\\.nih\\.gov/.*'
+    website_www = 'https://www.ncbi.nlm.nih.gov/*'
     website_pubchem = 'https://pubchem.ncbi.nlm.nih.gov/.*'
     search = 'pccompound?term=%s'
     data_url = 'toc/summary_toc.cgi?tocid=27&cid=%s'
diff --git a/FourmiCrawler/sources/WikipediaParser.py b/FourmiCrawler/sources/WikipediaParser.py
index 385311c..e27bb39 100644
--- a/FourmiCrawler/sources/WikipediaParser.py
+++ b/FourmiCrawler/sources/WikipediaParser.py
@@ -15,7 +15,7 @@ class WikipediaParser(Source):
     It also returns requests with other external sources which contain information on parsed subject.
     """
 
-    website = "http://en\.wikipedia\.org/wiki/.*"
+    website = "http://en\\.wikipedia\\.org/wiki/.*"
     __spider = None
     searched_compounds = []
 
@@ -123,7 +123,7 @@ class WikipediaParser(Source):
         return items
 
     def new_compound_request(self, compound):
-        return Request(url=self.website[:-2] + compound, callback=self.parse)
+        return Request(url=self.website[:-2].replace("\\", "") + compound, callback=self.parse)
 
     @staticmethod
     def clean_items(items):
diff --git a/FourmiCrawler/sources/source.py b/FourmiCrawler/sources/source.py
index 3ffb47d..a0d3dcd 100644
--- a/FourmiCrawler/sources/source.py
+++ b/FourmiCrawler/sources/source.py
@@ -30,7 +30,7 @@ class Source:
         :param compound: A compound name.
         :return: A new Scrapy Request
         """
-        # return Request(url=self.website[:-2] + compound, callback=self.parse)
+        # return Request(url=self.website[:-2].replace("\\", "") + compound, callback=self.parse)
         pass
 
     def set_spider(self, spider):