# see https://github.com/SpiderLabs/ModSecurity/issues/2254
--- a/src/utils/geo_lookup.h	2021-08-16 13:53:16.361372841 +0000
+++ b/src/utils/geo_lookup.h	2021-08-16 13:53:51.209561652 +0000
@@ -50,7 +50,7 @@
     void cleanUp();
 
     bool lookup(const std::string& target, Transaction *transaction,
-        std::function<bool(int, const std::string &)> debug) const;
+        std::function<bool(int, const std::string &)> debug);
 
  private:
     GeoLookup() :
--- a/src/utils/geo_lookup.cc	2021-08-16 13:53:22.615406728 +0000
+++ b/src/utils/geo_lookup.cc	2021-08-16 13:54:15.959695749 +0000
@@ -113,7 +113,7 @@
 
 
 bool GeoLookup::lookup(const std::string& target, Transaction *trans,
-    std::function<bool(int, const std::string &)> debug) const {
+    std::function<bool(int, const std::string &)> debug) {
 
     if (m_version == NOT_LOADED) {
         if (debug) {