diff --git a/modules/dsp/chowdsp_math/Math/chowdsp_TrigApprox.h b/modules/dsp/chowdsp_math/Math/chowdsp_TrigApprox.h
index f7b7ce9b8..5b2497e9f 100644
--- a/modules/dsp/chowdsp_math/Math/chowdsp_TrigApprox.h
+++ b/modules/dsp/chowdsp_math/Math/chowdsp_TrigApprox.h
@@ -23,11 +23,13 @@ namespace TrigApprox
             return T ((int) x);
         }
 
+#if ! CHOWDSP_NO_XSIMD
         template <typename T>
         xsimd::batch<T> truncate (xsimd::batch<T> x)
         {
             return xsimd::to_float (xsimd::to_int (x));
         }
+#endif
 
         /** Fast method to wrap a value into the range [-pi, pi] */
         template <typename T>