1 files changed, 2 insertions, 1 deletions
diff --git a/apt-pkg/cachefilter-patterns.h b/apt-pkg/cachefilter-patterns.h
index 1714bbb62..660e52e82 100644
--- a/apt-pkg/cachefilter-patterns.h
+++ b/apt-pkg/cachefilter-patterns.h
@@ -16,6 +16,7 @@
 #include <cassert>
 #include <iostream>
 #include <memory>
+#include <optional>
 #include <sstream>
 #include <string>
 #include <vector>
@@ -147,7 +148,7 @@ using namespace APT::CacheFilter;
 /** \brief Basic helper class for matching regex */
 class BaseRegexMatcher
 {
-   regex_t *pattern;
+   std::optional<regex_t> pattern;
 
    public:
    BaseRegexMatcher(std::string const &string);