--- old/src/hotspot/share/logging/logPrefix.hpp	2018-08-03 16:41:16.000000000 -0500
+++ new/src/hotspot/share/logging/logPrefix.hpp	2018-08-03 16:41:16.000000000 -0500
@@ -80,6 +80,7 @@
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, reloc)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, start)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, stringtable)) \
+  LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, symboltable)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, sweep)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task)) \
   LOG_PREFIX(GCId::print_prefix, LOG_TAGS(gc, task, start)) \