diff --git a/include/Nazara/Core/MemoryHelper.hpp b/include/Nazara/Core/MemoryHelper.hpp
index 2788b4ca1..4fb68421e 100644
--- a/include/Nazara/Core/MemoryHelper.hpp
+++ b/include/Nazara/Core/MemoryHelper.hpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2017 Jérôme Leclercq
+// Copyright (C) 2017 Jérôme Leclercq
 // This file is part of the "Nazara Engine - Core module"
 // For conditions of distribution and use, see copyright notice in Config.hpp
 
@@ -11,6 +11,7 @@
 
 #include <malloc.h>
 
+// with MSVC, using alloca with a size of zero returns a valid pointer
 #define NAZARA_ALLOCA(size) _alloca(size)
 #define NAZARA_ALLOCA_SUPPORT
 
@@ -18,6 +19,8 @@
 #include <alloca.h>
 
 #define NAZARA_ALLOCA(size) alloca(size)
+// with Clang/GCC, using alloca with a size of zero does nothing good
+#define NAZARA_ALLOCA(size) alloca(((size) > 0) ? (size) : 1)
 #define NAZARA_ALLOCA_SUPPORT
 
 #endif