diff --git a/src/Nazara/Core/StringExt.cpp b/src/Nazara/Core/StringExt.cpp
index a56447b98..2238a3810 100644
--- a/src/Nazara/Core/StringExt.cpp
+++ b/src/Nazara/Core/StringExt.cpp
@@ -72,7 +72,7 @@ namespace Nz
 				}
 				else
 				{
-					static_assert(AlwaysFalse<std::integral_constant<std::size_t, S>>, "Unsupported platform");
+					static_assert(AlwaysFalse<std::integral_constant<std::size_t, S>>::value, "Unsupported platform");
 					return std::wstring(L"<platform error>");
 				}
 			}