diff --git a/nel/src/gui/lua_helper.cpp b/nel/src/gui/lua_helper.cpp
index bb5fd5426..ed4106144 100644
--- a/nel/src/gui/lua_helper.cpp
+++ b/nel/src/gui/lua_helper.cpp
@@ -42,6 +42,12 @@
 	#define assert(x)
 #endif
 
+// Always use unique_ptr with ValyriaTear/luabind on Ubuntu 20,
+// since the setting is not stored in build_information.hpp
+#ifndef LUABIND_USE_CXX11
+#define LUABIND_USE_CXX11
+#endif
+
 #include <luabind/luabind.hpp>
 #include <nel/misc/algo.h>
 #include <nel/misc/path.h>
diff --git a/nel/src/gui/lua_ihm.cpp b/nel/src/gui/lua_ihm.cpp
index 7ea3d3887..229cd1f0f 100644
--- a/nel/src/gui/lua_ihm.cpp
+++ b/nel/src/gui/lua_ihm.cpp
@@ -48,6 +48,12 @@
 #	define assert(x)
 #endif
 
+// Always use unique_ptr with ValyriaTear/luabind on Ubuntu 20,
+// since the setting is not stored in build_information.hpp
+#ifndef LUABIND_USE_CXX11
+#define LUABIND_USE_CXX11
+#endif
+
 #include <luabind/luabind.hpp>
 // in luabind > 0.6, LUABIND_MAX_ARITY is set to 10
 #if LUABIND_MAX_ARITY == 10
diff --git a/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp b/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
index 179f782d9..d988bad18 100644
--- a/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
+++ b/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
@@ -41,6 +41,12 @@
 #	define assert(x)
 #endif
 
+// Always use unique_ptr with ValyriaTear/luabind on Ubuntu 20,
+// since the setting is not stored in build_information.hpp
+#ifndef LUABIND_USE_CXX11
+#define LUABIND_USE_CXX11
+#endif
+
 #include <luabind/luabind.hpp>
 // in luabind > 0.6, LUABIND_MAX_ARITY is set to 10
 #if LUABIND_MAX_ARITY == 10
diff --git a/ryzom/tools/leveldesign/variable_parser/lua_helper.cpp b/ryzom/tools/leveldesign/variable_parser/lua_helper.cpp
index 2bb462664..bca003d6a 100644
--- a/ryzom/tools/leveldesign/variable_parser/lua_helper.cpp
+++ b/ryzom/tools/leveldesign/variable_parser/lua_helper.cpp
@@ -30,6 +30,13 @@ extern "C"
 #include <cassert>
 #undef assert
 #define assert nlassert
+
+// Always use unique_ptr with ValyriaTear/luabind on Ubuntu 20,
+// since the setting is not stored in build_information.hpp
+#ifndef LUABIND_USE_CXX11
+#define LUABIND_USE_CXX11
+#endif
+
 #include <luabind/luabind.hpp>
 
 using namespace std;