diff --git a/src/XrdMacaroons/XrdMacaroonsHandler.cc b/src/XrdMacaroons/XrdMacaroonsHandler.cc
index 42bda11ffc2..767505fd719 100644
--- a/src/XrdMacaroons/XrdMacaroonsHandler.cc
+++ b/src/XrdMacaroons/XrdMacaroonsHandler.cc
@@ -1,5 +1,4 @@
 
-#include <regex>
 #include <cstring>
 #include <string>
 #include <iostream>
diff --git a/src/XrdSciTokens/XrdSciTokensAccess.cc b/src/XrdSciTokens/XrdSciTokensAccess.cc
index 29dcfacfb7b..cf1abd4063a 100644
--- a/src/XrdSciTokens/XrdSciTokensAccess.cc
+++ b/src/XrdSciTokens/XrdSciTokensAccess.cc
@@ -15,7 +15,6 @@
 #include <fstream>
 #include <unordered_map>
 #include <tuple>
-#include <regex>
 
 #include "INIReader.h"
 #include "picojson.h"
@@ -648,8 +647,10 @@ class XrdAccSciTokens : public XrdAccAuthorize, public XrdSciTokensHelper
             for (auto path : config.m_base_paths) {
                 auto path_rule = rule;
                 path_rule.m_path_prefix = path + rule.m_path_prefix;
-                path_rule.m_path_prefix = std::regex_replace(path_rule.m_path_prefix,
-                                                             std::regex("//"), "/");
+                auto pos = path_rule.m_path_prefix.find("//");
+                if (pos != std::string::npos) {
+                    path_rule.m_path_prefix.erase(pos + 1, 1);
+                }
                 map_rules.emplace_back(path_rule);
             }
         }