diff --git a/src/meson.build b/src/meson.build
index ab786c0..5f5c78b 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -56,6 +56,7 @@
   'signal.cpp',
   'str/cat.cpp',
   'str/cexpr.cpp',
+  'str/maps.cpp',
   'util/cexec.cpp',
   'zstring.cpp',
   'zstring_view.cpp',
diff --git a/src/str/maps.cpp b/src/str/maps.cpp
new file mode 100644
index 0000000..ed8d63f
--- /dev/null
+++ b/src/str/maps.cpp
@@ -0,0 +1 @@
+#include <stdplus/str/maps.hpp>