diff --git a/sfizz/OnePoleFilter.h b/sfizz/OnePoleFilter.h
index d7d1aad6..58f1d9dc 100644
--- a/sfizz/OnePoleFilter.h
+++ b/sfizz/OnePoleFilter.h
@@ -105,7 +105,7 @@ public:
         auto sentinel = in + size;
         while (in < sentinel) {
             setGain(*g);
-            oneLowpass(in, out);
+            oneHighpass(in, out);
             in++;
             out++;
             g++;