diff --git a/src/IRCNetwork.cpp b/src/IRCNetwork.cpp
index 46a2481a..99f92429 100644
--- a/src/IRCNetwork.cpp
+++ b/src/IRCNetwork.cpp
@@ -363,11 +363,13 @@ CString CIRCNetwork::GetNetworkPath() const {
     return sNetworkPath;
 }
 
+namespace {
 template <class T>
 struct TOption {
     const char* name;
     void (CIRCNetwork::*pSetter)(T);
 };
+}
 
 bool CIRCNetwork::ParseConfig(CConfig* pConfig, CString& sError,
                               bool bUpgrade) {
diff --git a/src/User.cpp b/src/User.cpp
index 2ab5fac6..16624adb 100644
--- a/src/User.cpp
+++ b/src/User.cpp
@@ -135,11 +135,13 @@ CUser::~CUser() {
     CZNC::Get().AddBytesWritten(m_uBytesWritten);
 }
 
+namespace {
 template <class T>
 struct TOption {
     const char* name;
     void (CUser::*pSetter)(T);
 };
+}
 
 bool CUser::ParseConfig(CConfig* pConfig, CString& sError) {
     TOption<const CString&> StringOptions[] = {