diff --git a/test/unittest/istreamwrappertest.cpp b/test/unittest/istreamwrappertest.cpp
index 942365b..9d9ff2f 100644
--- a/test/unittest/istreamwrappertest.cpp
+++ b/test/unittest/istreamwrappertest.cpp
@@ -93,7 +93,7 @@ TEST(IStreamWrapper, wistringstream) {
 }
 
 TEST(IStreamWrapper, wstringstream) {
-    TestStringStream<wistringstream>();
+    TestStringStream<wstringstream>();
 }
 
 template <typename FileStreamType>