diff --git a/main.py b/main.py
index 92c3571..79217d2 100755
--- a/main.py
+++ b/main.py
@@ -150,11 +150,21 @@ class ProxyScraperChecker:
         if not self.enabled_folders:
             raise ValueError("all folders are disabled in the config")
 
-        regex = r"(?:^|\D)?(({0}\.{1}\.{1}\.{1}):{2})(?:\D|$)".format(
-            r"(?:[1-9]|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])",  # 1-255
-            r"(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])",  # 0-255
-            r"(?:\d|[1-9]\d{1,3}|[1-5]\d{4}|6[0-4]\d{3}"
-            + r"|65[0-4]\d{2}|655[0-2]\d|6553[0-5])",  # 0-65535
+        regex = (
+            r"(?:^|\D)?(("
+            + r"(?:[1-9]|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])"  # 1-255
+            + r"\."
+            + r"(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])"  # 0-255
+            + r"\."
+            + r"(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])"  # 0-255
+            + r"\."
+            + r"(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])"  # 0-255
+            + r"):"
+            + (
+                r"(?:\d|[1-9]\d{1,3}|[1-5]\d{4}|6[0-4]\d{3}"
+                + r"|65[0-4]\d{2}|655[0-2]\d|6553[0-5])"
+            )  # 0-65535
+            + r")(?:\D|$)"
         )
         self.regex = re.compile(regex)