diff --git a/include/server.h b/include/server.h
index 250bace7..09689d86 100644
--- a/include/server.h
+++ b/include/server.h
@@ -64,8 +64,8 @@ namespace kiwix
        void setBlockExternalLinks(bool blockExternalLinks)
         { m_blockExternalLinks = blockExternalLinks; }
        void setIpMode(IpMode mode) { m_ipMode = mode; }
-       int getPort();
-       std::string getAddress();
+       int getPort() const;
+       std::string getAddress() const;
        IpMode getIpMode() const;
 
      protected:
diff --git a/src/server.cpp b/src/server.cpp
index 89491c37..207852a6 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -75,12 +75,12 @@ void Server::setRoot(const std::string& root)
   }
 }
 
-int Server::getPort()
+int Server::getPort() const
 {
   return mp_server->getPort();
 }
 
-std::string Server::getAddress()
+std::string Server::getAddress() const
 {
   return mp_server->getAddress();
 }
diff --git a/src/server/internalServer.h b/src/server/internalServer.h
index 14694fd1..85ca2cbd 100644
--- a/src/server/internalServer.h
+++ b/src/server/internalServer.h
@@ -117,8 +117,8 @@ class InternalServer {
                                void** cont_cls);
     bool start();
     void stop();
-    std::string getAddress() { return m_addr; }
-    int getPort() { return m_port; }
+    std::string getAddress() const { return m_addr; }
+    int getPort() const { return m_port; }
     IpMode getIpMode() const { return m_ipMode; }
 
   private: // functions