diff --git a/src/meson.build b/src/meson.build
index a59cffd..204110f 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -44,6 +44,7 @@
 stdplus_srcs = [
   'exception.cpp',
   'signal.cpp',
+  'zstring.cpp',
   'zstring_view.cpp',
 ]
 
diff --git a/src/zstring.cpp b/src/zstring.cpp
new file mode 100644
index 0000000..660b81c
--- /dev/null
+++ b/src/zstring.cpp
@@ -0,0 +1,16 @@
+#include <stdplus/zstring.hpp>
+
+namespace stdplus
+{
+
+#define zstring_instance(char_t)                                               \
+    template class basic_zstring<char_t>;                                      \
+    template class basic_zstring<const char_t>
+zstring_instance(char);
+zstring_instance(char8_t);
+zstring_instance(char16_t);
+zstring_instance(char32_t);
+zstring_instance(wchar_t);
+#undef zstring_instance
+
+} // namespace stdplus