--- a/meson.build
+++ b/meson.build
@@ -144,6 +144,9 @@ if get_option('old_headers')
     include_prefix / 'core' / 'lv2_util.h',
   )
 
+  # Special case lv2.h is also in top-level include directory
+  install_headers(files(include_prefix / 'core' / 'lv2.h'))
+
   # Core headers are inconsistently in "lv2plug.in/ns/lv2core"
   install_data(core_headers, install_dir: uri_include_dir / 'lv2core')