diff --git a/benchmarks/util.h b/benchmarks/util.h
index c8c39e3..cf6f50e 100644
--- a/benchmarks/util.h
+++ b/benchmarks/util.h
@@ -52,6 +52,8 @@
 
 char* GetAlignedPtr(std::vector<char>* buf, size_t alignment, size_t nbytes);
 
+wchar_t* GetAlignedPtr(std::vector<wchar_t>* buf, size_t alignment, size_t nbytes);
+
 char* GetAlignedPtrFilled(std::vector<char>* buf, size_t alignment, size_t nbytes, char fill_byte);
 
 bool LockToCPU(long cpu_to_lock);