diff --git a/example/kalman_filter/kalman.h b/example/kalman_filter/kalman.h
index f878335b..a85ea33a 100644
--- a/example/kalman_filter/kalman.h
+++ b/example/kalman_filter/kalman.h
@@ -84,7 +84,7 @@ public:
   uncertainty_type uncertainty;
 };
 
-#if UNITS_COMP_CLANG <= 14
+#if UNITS_COMP_CLANG <= 15
 
 template<QuantityOrQuantityPoint QQP, units::Quantity U>
 estimation(state<QQP>, U) -> estimation<QQP>;