diff --git a/source/mijin/internal/config.hpp b/source/mijin/internal/config.hpp
index 454e69f..8a9c054 100644
--- a/source/mijin/internal/config.hpp
+++ b/source/mijin/internal/config.hpp
@@ -4,8 +4,11 @@
 #if !defined(MIJIN_INTERNAL_CONFIG_HPP_INCLUDED)
 #define MIJIN_INTERNAL_CONFIG_HPP_INCLUDED 1
 
+#define MIJIN_QUOTED_ACTUAL(x) #x
+#define MIJIN_QUOTED(x) MIJIN_QUOTED_ACTUAL(x)
+
 #if defined(MIJIN_CONFIG_HEADER)
-#include MIJIN_CONFIG_HEADER
+#include MIJIN_QUOTED(MIJIN_CONFIG_HEADER)
 #endif
 
 #if !defined(MIJIN_DEFAULT_ALLOCATOR)