diff --git a/src/sfizz/Macros.h b/src/sfizz/Macros.h
index fd2225c1..f610eefb 100644
--- a/src/sfizz/Macros.h
+++ b/src/sfizz/Macros.h
@@ -19,7 +19,7 @@
 #endif
 
 #if __cplusplus > 201103L
-#define CONSTEXPR_OR_INLINE constexpr
+#define CXX14_CONSTEXPR constexpr
 #else
-#define CONSTEXPR_OR_INLINE inline
+#define CXX14_CONSTEXPR
 #endif
diff --git a/src/sfizz/MathHelpers.h b/src/sfizz/MathHelpers.h
index ca58b62e..d126992b 100644
--- a/src/sfizz/MathHelpers.h
+++ b/src/sfizz/MathHelpers.h
@@ -129,13 +129,13 @@ constexpr T clamp( T v, T lo, T hi )
 }
 
 template<int Increment = 1, class T>
-CONSTEXPR_OR_INLINE void incrementAll(T& only)
+inline CXX14_CONSTEXPR void incrementAll(T& only)
 {
     only += Increment;
 }
 
 template<int Increment = 1, class T, class... Args>
-CONSTEXPR_OR_INLINE void incrementAll(T& first, Args&... rest)
+inline CXX14_CONSTEXPR void incrementAll(T& first, Args&... rest)
 {
     first += Increment;
     incrementAll<Increment>(rest...);
diff --git a/src/sfizz/SfzHelpers.h b/src/sfizz/SfzHelpers.h
index 10ddcbe3..a50c3428 100644
--- a/src/sfizz/SfzHelpers.h
+++ b/src/sfizz/SfzHelpers.h
@@ -231,7 +231,7 @@ using modFunction = std::function<void(T&, U)>;
  * @param modifier the modifier value
  */
 template<class T>
-CONSTEXPR_OR_INLINE void addToBase(T& base, T modifier)
+inline CXX14_CONSTEXPR void addToBase(T& base, T modifier)
 {
     base += modifier;
 }
@@ -242,7 +242,7 @@ CONSTEXPR_OR_INLINE void addToBase(T& base, T modifier)
  * @param base
  * @param modifier
  */
-CONSTEXPR_OR_INLINE void multiplyByCents(float& base, int modifier)
+inline CXX14_CONSTEXPR void multiplyByCents(float& base, int modifier)
 {
     base *= centsFactor(modifier);
 }