diff --git a/test cases/failing/51 reserved meson prefix/meson-foo/meson.build b/test cases/failing/54 reserved meson prefix/meson-foo/meson.build
similarity index 100%
rename from test cases/failing/51 reserved meson prefix/meson-foo/meson.build
rename to test cases/failing/54 reserved meson prefix/meson-foo/meson.build
diff --git a/test cases/failing/51 reserved meson prefix/meson.build b/test cases/failing/54 reserved meson prefix/meson.build
similarity index 100%
rename from test cases/failing/51 reserved meson prefix/meson.build
rename to test cases/failing/54 reserved meson prefix/meson.build