diff --git a/src/lol/base/types.h b/src/lol/base/types.h
index 17b81b39..bfe2f8d2 100644
--- a/src/lol/base/types.h
+++ b/src/lol/base/types.h
@@ -31,7 +31,9 @@ class half;
  * Forward declaration of vec_t, mat_t, cmplx_t, quat_t
  */
 
-int const FULL_SWIZZLE = 0;
+/* HACK: if this is declared int const, Visual Studio becomes unable
+ * to perform template argument deduction. */
+#define FULL_SWIZZLE (0)
 
 template<typename T, int N, int SWIZZLE = FULL_SWIZZLE> struct vec_t;
 template<typename T, int COLS, int ROWS> struct mat_t;