diff --git a/test/input.output/file.streams/c.files/cinttypes.pass.cpp b/test/input.output/file.streams/c.files/cinttypes.fail.cpp
similarity index 100%
rename from test/input.output/file.streams/c.files/cinttypes.pass.cpp
rename to test/input.output/file.streams/c.files/cinttypes.fail.cpp
diff --git a/test/input.output/file.streams/c.files/cstdio.pass.cpp b/test/input.output/file.streams/c.files/cstdio.fail.cpp
similarity index 100%
rename from test/input.output/file.streams/c.files/cstdio.pass.cpp
rename to test/input.output/file.streams/c.files/cstdio.fail.cpp