diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 535a19a70c..94ed7a93b9 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2464,15 +2464,19 @@ _git_config ()
 		format.thread
 		format.to
 		gc.
+		gc.aggressiveDepth
 		gc.aggressiveWindow
 		gc.auto
+		gc.autoDetach
 		gc.autopacklimit
+		gc.logExpiry
 		gc.packrefs
 		gc.pruneexpire
 		gc.reflogexpire
 		gc.reflogexpireunreachable
 		gc.rerereresolved
 		gc.rerereunresolved
+		gc.worktreePruneExpire
 		gitcvs.allbinary
 		gitcvs.commitmsgannotation
 		gitcvs.dbTableNamePrefix