1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sputbackc.pass.cpp b/libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sputbackc.pass.cpp
index 34a2a2dda37..2f4aad05107 100644
--- a/libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sputbackc.pass.cpp
+++ b/libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sputbackc.pass.cpp
@@ -32,7 +32,7 @@ struct test
     }
 
 protected:
-    int_type pbackfail(int_type c = traits_type::eof())
+    int_type pbackfail(int_type = traits_type::eof())
     {
         ++pbackfail_called;
         return 'a';