diff --git a/doc/c/xml/meson.build b/doc/c/xml/meson.build
index 27696ed..fdb55cc 100644
--- a/doc/c/xml/meson.build
+++ b/doc/c/xml/meson.build
@@ -13,7 +13,7 @@ c_doxyfile = configure_file(configuration: config,
                             input: '../Doxyfile.in',
                             output: 'Doxyfile')
 
-c_index_xml = custom_target('c-index.xml',
+c_index_xml = custom_target('sratom-c-index.xml',
                             command: [doxygen, '@INPUT0@'],
                             input: [c_doxyfile] + c_header_files,
                             output: 'index.xml')