diff --git a/doc/source/shared/abbrevs.txt b/doc/source/shared/abbrevs.txt
index ff10cee2b..2daffdab2 100755
--- a/doc/source/shared/abbrevs.txt
+++ b/doc/source/shared/abbrevs.txt
@@ -62,6 +62,7 @@
 .. |FPGA| replace:: :abbr:`FPGA (Field Programmable Gate Array)`
 .. |FQDN| replace:: :abbr:`FQDN (Fully Qualified Domain Name)`
 .. |FQDNs| replace:: :abbr:`FQDNs (Fully Qualified Domain Names)`
+.. |GC| replace:: :abbr:`GC (Garbage Collection)`
 .. |GM| replace:: :abbr:`GM (Grand Master)`
 .. |GNP| replace:: :abbr:`GNP (Global Network Policy)`
 .. |GNPs| replace:: :abbr:`GNPs (Global Network Policies)`