diff --git a/repos/libports/lib/symbols/stdcxx b/repos/libports/lib/symbols/stdcxx
index 7fc552e66c..a6bb860895 100644
--- a/repos/libports/lib/symbols/stdcxx
+++ b/repos/libports/lib/symbols/stdcxx
@@ -1712,6 +1712,7 @@ _ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate W
 _ZNSt9basic_iosIcSt11char_traitsIcEE5imbueERKSt6locale W
 _ZNSt9basic_iosIcSt11char_traitsIcEE5rdbufEPSt15basic_streambufIcS1_E W
 _ZNSt9basic_iosIcSt11char_traitsIcEE7copyfmtERKS2_ W
+_ZNSt9basic_iosIcSt11char_traitsIcEE11_M_setstateESt12_Ios_Iostate W
 _ZNSt9basic_iosIcSt11char_traitsIcEEC1EPSt15basic_streambufIcS1_E W
 _ZNSt9basic_iosIcSt11char_traitsIcEEC1Ev W
 _ZNSt9basic_iosIcSt11char_traitsIcEEC2Ev W