diff --git a/src/sfizz/MathHelpers.h b/src/sfizz/MathHelpers.h
index d126992b..b43428f8 100644
--- a/src/sfizz/MathHelpers.h
+++ b/src/sfizz/MathHelpers.h
@@ -110,7 +110,7 @@ namespace Random {
  */
 inline float midiNoteFrequency(const int noteNumber)
 {
-    return 440.0f * std::pow(2.0f, (noteNumber - 69) / 12.0f);
+    return 440.0f * std::pow(2.0f, (noteNumber - 69) * (1.0f / 12.0f));
 }
 
 /**