diff --git a/src/security/conf/filter.hpp b/src/security/conf/filter.hpp
index 7d5b833..4145222 100644
--- a/src/security/conf/filter.hpp
+++ b/src/security/conf/filter.hpp
@@ -207,7 +207,7 @@
           {
             return shared_ptr<RegexNameFilter>(new RegexNameFilter(regexString));
           }
-        catch (const Regex::Error& e)
+        catch (Regex::Error& e)
           {
             throw Error("Wrong filter.regex: " + regexString);
           }