diff --git a/repos/libports/lib/symbols/libc b/repos/libports/lib/symbols/libc
index e98a9ce693..a9f977b9db 100644
--- a/repos/libports/lib/symbols/libc
+++ b/repos/libports/lib/symbols/libc
@@ -937,6 +937,7 @@ _writev T
 # Public interface between Genode-component code and the libc runtime
 #
 _ZN4Libc9Component9constructERNS_3EnvE U
+_ZN4Libc9Component10stack_sizeEv W
 _ZN4Libc30execute_in_application_contextERNS_16Application_codeE T
 _ZN4Libc19Select_handler_base6selectEiR6fd_setS2_S2_ T
 _ZN4Libc19Select_handler_baseC1Ev T