diff --git a/repos/libports/lib/symbols/stdcxx b/repos/libports/lib/symbols/stdcxx
index e73eacfab2..89c2aaf963 100644
--- a/repos/libports/lib/symbols/stdcxx
+++ b/repos/libports/lib/symbols/stdcxx
@@ -1679,6 +1679,7 @@ _ZNSt7__cxx1115messages_bynameIcEC1EPKcm W
 _ZNSt7__cxx1115messages_bynameIcEC2EPKcm W
 _ZNSt7__cxx1115messages_bynameIwEC1EPKcm W
 _ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strERKNS_12basic_stringIcS2_S3_EE W
+_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1EONS_12basic_stringIcS2_S3_EESt13_Ios_Openmode W
 _ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode W
 _ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ESt13_Ios_Openmode W
 _ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev W