diff --git a/include/common.h b/include/common.h
index 995993bc..e97d025e 100644
--- a/include/common.h
+++ b/include/common.h
@@ -16,7 +16,7 @@
 
 namespace kiwix {
 
-enum class IpMode { ipv4, ipv6, all };
+enum class IpMode { IPV4, IPV6, ALL };
 typedef zim::size_type size_type;
 typedef zim::offset_type offset_type;
 
diff --git a/include/server.h b/include/server.h
index d44c5207..250bace7 100644
--- a/include/server.h
+++ b/include/server.h
@@ -81,7 +81,7 @@ namespace kiwix
        bool m_withTaskbar = true;
        bool m_withLibraryButton = true;
        bool m_blockExternalLinks = false;
-       IpMode m_ipMode = IpMode::ipv4;
+       IpMode m_ipMode = IpMode::IPV4;
        int m_ipConnectionLimit = 0;
        std::unique_ptr<InternalServer> mp_server;
   };
diff --git a/src/server/internalServer.cpp b/src/server/internalServer.cpp
index 476e1a18..95a26349 100644
--- a/src/server/internalServer.cpp
+++ b/src/server/internalServer.cpp
@@ -466,25 +466,25 @@ bool InternalServer::start() {
       sockAddr6.sin6_addr = in6addr_any;
       sockAddr4.sin_addr.s_addr = htonl(INADDR_ANY);
     }
-    m_addr = kiwix::getBestPublicIp(m_ipMode == IpMode::ipv6 || m_ipMode == IpMode::all);
+    m_addr = kiwix::getBestPublicIp(m_ipMode == IpMode::IPV6 || m_ipMode == IpMode::ALL);
   } else {
     bool ipv6 = inet_pton(AF_INET6, m_addr.c_str(), &(sockAddr6.sin6_addr.s6_addr)) == 1;
     bool ipv4 = inet_pton(AF_INET, m_addr.c_str(), &(sockAddr4.sin_addr.s_addr)) == 1;
     if (ipv6){
-       m_ipMode = IpMode::all;
+       m_ipMode = IpMode::ALL;
     } else if (!ipv4) {
       std::cerr << "Ip address " << m_addr << "  is not a valid ip address" << std::endl;
       return false;
     }
   }
 
-  if (m_ipMode == IpMode::all) {
+  if (m_ipMode == IpMode::ALL) {
     flags|=MHD_USE_DUAL_STACK;
-  } else if (m_ipMode == IpMode::ipv6) {
+  } else if (m_ipMode == IpMode::IPV6) {
     flags|=MHD_USE_IPv6;
   }
 
-  struct sockaddr* sockaddr = (m_ipMode==IpMode::all || m_ipMode==IpMode::ipv6)
+  struct sockaddr* sockaddr = (m_ipMode==IpMode::ALL || m_ipMode==IpMode::IPV6)
                               ? (struct sockaddr*)&sockAddr6
                               : (struct sockaddr*)&sockAddr4;