diff --git a/src/policy_cache.hpp b/src/policy_cache.hpp
index 4efca078..e4cc2ec9 100644
--- a/src/policy_cache.hpp
+++ b/src/policy_cache.hpp
@@ -45,7 +45,9 @@ public:
   PolicyCache(unsigned const max_size_ = 256)
     : _max_size(max_size_)
   {
+    strpool_config_t config = strpool_default_config;
 
+    strpool_init(&_strpool,&config);
   }
 
   ~PolicyCache()