diff --git a/sycl/test/regression/tanh_complex.cpp b/sycl/test/regression/tanh_complex.cpp
index 3396cf0da2004..8950c8755fbee 100644
--- a/sycl/test/regression/tanh_complex.cpp
+++ b/sycl/test/regression/tanh_complex.cpp
@@ -9,6 +9,8 @@
 #include <sycl/sycl.hpp>
 
 #include <complex>
+#include <iomanip>
+#include <iostream>
 #include <limits>
 
 namespace syclexp = sycl::ext::oneapi::experimental;