diff --git a/source/native-plugins/zita-rev1.cpp b/source/native-plugins/zita-rev1.cpp
index 45f3cca90..1c1b36a89 100644
--- a/source/native-plugins/zita-rev1.cpp
+++ b/source/native-plugins/zita-rev1.cpp
@@ -423,7 +423,7 @@ public:
     {
         uint32_t index = rindex;
 
-        if (kIsAmbisonic && rindex == Mainwin::NROTARY)
+        if (kIsAmbisonic && rindex == kParameterNROTARY)
             index = kParameterOPMIXorRGXYZ;
 
         fParameters[index] = value;