diff --git a/libcxx/test/std/ranges/range.adaptors/range.lazy.split/adaptor.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.lazy.split/adaptor.pass.cpp
index da4bd9fbbe179..aae5b6e54f648 100644
--- a/libcxx/test/std/ranges/range.adaptors/range.lazy.split/adaptor.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.lazy.split/adaptor.pass.cpp
@@ -40,10 +40,10 @@ static_assert(!std::is_invocable_v<decltype(std::views::lazy_split), SomeView, N
 static_assert(!std::is_invocable_v<decltype(std::views::lazy_split), NotAView, SomeView>);
 static_assert( std::is_invocable_v<decltype(std::views::lazy_split), SomeView, SomeView>);
 
-static_assert( CanBePiped<SomeView&,    decltype(std::views::lazy_split)>);
-static_assert( CanBePiped<char(&)[10],  decltype(std::views::lazy_split)>);
-static_assert(!CanBePiped<char(&&)[10], decltype(std::views::lazy_split)>);
-static_assert(!CanBePiped<NotAView,     decltype(std::views::lazy_split)>);
+static_assert(CanBePiped<SomeView&, decltype(std::views::lazy_split('x'))>);
+static_assert(CanBePiped<char (&)[10], decltype(std::views::lazy_split('x'))>);
+static_assert(!CanBePiped<char (&&)[10], decltype(std::views::lazy_split('x'))>);
+static_assert(!CanBePiped<NotAView, decltype(std::views::lazy_split('x'))>);
 
 static_assert(std::same_as<decltype(std::views::lazy_split), decltype(std::ranges::views::lazy_split)>);
 
diff --git a/libcxx/test/std/ranges/range.adaptors/range.split/adaptor.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.split/adaptor.pass.cpp
index cd12011daeab5..5bf2d56090e8f 100644
--- a/libcxx/test/std/ranges/range.adaptors/range.split/adaptor.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.split/adaptor.pass.cpp
@@ -39,10 +39,10 @@ static_assert(!std::is_invocable_v<decltype(std::views::split), SomeView, NotAVi
 static_assert(!std::is_invocable_v<decltype(std::views::split), NotAView, SomeView>);
 static_assert( std::is_invocable_v<decltype(std::views::split), SomeView, SomeView>);
 
-static_assert( CanBePiped<SomeView&,    decltype(std::views::split)>);
-static_assert( CanBePiped<char(&)[10],  decltype(std::views::split)>);
-static_assert(!CanBePiped<char(&&)[10], decltype(std::views::split)>);
-static_assert(!CanBePiped<NotAView,     decltype(std::views::split)>);
+static_assert(CanBePiped<SomeView&, decltype(std::views::split('x'))>);
+static_assert(CanBePiped<char (&)[10], decltype(std::views::split('x'))>);
+static_assert(!CanBePiped<char (&&)[10], decltype(std::views::split('x'))>);
+static_assert(!CanBePiped<NotAView, decltype(std::views::split('x'))>);
 
 static_assert(std::same_as<decltype(std::views::split), decltype(std::ranges::views::split)>);