diff --git a/src/str/buf.cpp b/src/str/buf.cpp
new file mode 100644
index 0000000..b0eb177
--- /dev/null
+++ b/src/str/buf.cpp
@@ -0,0 +1,9 @@
+#include <stdplus/str/buf.hpp>
+
+namespace stdplus
+{
+
+template class BasicStrBuf<char>;
+template class BasicStrBuf<wchar_t>;
+
+} // namespace stdplus