diff --git a/tests/regress/27.streambuf.sgetn.stdcxx-1026.cpp b/tests/regress/27.streambuf.sgetn.stdcxx-1026.cpp
index e943726..8a06ed0 100644
--- a/tests/regress/27.streambuf.sgetn.stdcxx-1026.cpp
+++ b/tests/regress/27.streambuf.sgetn.stdcxx-1026.cpp
@@ -34,7 +34,7 @@
 {
     static int x = '0';
 
-    struct: std::streambuf {
+    struct MyBuf : std::streambuf {
         // unbuffered, always successfully reads one character
         int_type underflow () {
             assert (gptr () == egptr ());