--- a/utils.py
+++ b/utils.py
@@ -126,7 +126,7 @@
             print('This tool needs to run on Red Hat Enterprise Linux')
             return None
     for rel in release:
-        if re.match("\d.\d+",rel):
+        if re.match(r"\d+.\d+",rel):
             return rel
     print('This tool needs to run on Red Hat Enterprise Linux')
     return None