diff --git a/libstdc++-v3/testsuite/tr1/8_c_compatibility/cstdio/functions.cc b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cstdio/functions.cc
index 88809469751..db8d9dc0f67 100644
--- a/libstdc++-v3/testsuite/tr1/8_c_compatibility/cstdio/functions.cc
+++ b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cstdio/functions.cc
@@ -35,7 +35,7 @@ void test01(int dummy, ...)
   char* s = 0;
   const char* cs = 0;
   const char* format = "%i";
-  FILE* stream = 0;
+  FILE* stream = va_arg(ap, FILE*);
   std::size_t n = 0;
 
   int ret;
diff --git a/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc
index 9fddaf54a90..df9d7e6be98 100644
--- a/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc
+++ b/libstdc++-v3/testsuite/tr1/8_c_compatibility/cwchar/functions.cc
@@ -42,7 +42,7 @@ void test01(int dummy, ...)
 #endif
 
 #if _GLIBCXX_HAVE_VFWSCANF
-  FILE* stream = 0;
+  FILE* stream = va_arg(arg, FILE*);
   const wchar_t* format1 = 0;
   int ret1;
   ret1 = std::tr1::vfwscanf(stream, format1, arg);