3 files changed, 4 insertions, 3 deletions
diff --git a/web/server/apache/request.cxx b/web/server/apache/request.cxx
index 64e1e6d..f6e9f15 100644
--- a/web/server/apache/request.cxx
+++ b/web/server/apache/request.cxx
@@ -789,7 +789,7 @@ namespace web
           if (is != nullptr)
           {
             if (r != nullptr)
-              throw invalid_argument ("multiple uploads for '" + name + "'");
+              throw invalid_argument ("multiple uploads for '" + name + '\'');
 
             r = is;
           }
diff --git a/web/server/apache/service.cxx b/web/server/apache/service.cxx
index af5873e..6d02c1a 100644
--- a/web/server/apache/service.cxx
+++ b/web/server/apache/service.cxx
@@ -47,7 +47,7 @@ namespace web
       for (const auto& o: od)
       {
         auto i (
-          option_descriptions_.emplace (name_ + "-" + o.first, o.second));
+          option_descriptions_.emplace (name_ + '-' + o.first, o.second));
         assert (i.second);
 
         *d++ =
diff --git a/web/server/module.hxx b/web/server/module.hxx
index f870163..20f6217 100644
--- a/web/server/module.hxx
+++ b/web/server/module.hxx
@@ -9,6 +9,7 @@
 #include <vector>
 #include <iosfwd>
 #include <chrono>
+#include <memory>    // enable_shared_from_this
 #include <cstdint>   // uint16_t
 #include <cstddef>   // size_t
 #include <utility>   // move()
@@ -236,7 +237,7 @@ namespace web
   // directories (e.g., apache/) if you need to see the code that
   // does this.
   //
-  class handler
+  class handler: public std::enable_shared_from_this<handler>
   {
   public:
     virtual