# see https://github.com/owasp-modsecurity/ModSecurity/issues/2254
--- src/utils/geo_lookup.h.orig
+++ src/utils/geo_lookup.h
@@ -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() :
--- src/utils/geo_lookup.cc.orig
+++ src/utils/geo_lookup.cc
@@ -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) {